meganeya no tenin ha, kanozyo no sigoto ni au otituita hureemu wo osusumesite kuremasita.

メガネ屋 means a glasses shop / eyeglasses store.
店員 means store clerk or shop employee.

So メガネ屋の店員 means the clerk at the glasses store.

The の here links the two nouns, so it is literally something like the glasses-shop clerk.

They are doing two separate jobs:

• メガネ屋の店員 = the clerk of the glasses shop
• 彼女の仕事 = her job

In both cases, の connects one noun to another. Very often it shows possession, belonging, or close relationship.

So here:

• first の = shop → clerk
• second の = her → job

は marks the topic. It sets up the store clerk as the person we are talking about.

So 店員は feels like:

• As for the store clerk...
• The store clerk, ...

If you used 店員が, it would put more focus on the clerk as the subject, as if contrasting them with someone else or identifying who did the recommending.

In this sentence, は sounds natural because the sentence is simply describing what the clerk did.

A good way to read it is:

• [彼女の仕事に合う]
• [落ち着いた]
• フレーム

Both of the first two parts modify フレーム.

So the frames are:

• suited to her job
• subdued / calm / mature in style

Japanese often stacks modifiers before the noun, so the full phrase can feel long at first.

Here, 合う means to suit, to match, or to be appropriate for.

So 彼女の仕事に合う means:

• suited to her job
• appropriate for her work
• a good match for her profession

The particle に marks the thing that something suits or matches.

So:

• 仕事に合う = suits the job
• 彼女に合う = suits her

This is a very common question.

• 合う = to match / suit / be appropriate for
• 似合う = to look good on someone

So:

• 彼女の仕事に合うフレーム = frames appropriate for her job
• 彼女に似合うフレーム = frames that look good on her

This sentence is focused on professional suitability, not just appearance. That is why 合う is a better choice here.

It is the plain past form of 落ち着く, but before a noun it often works like an adjective.

Here, 落ち着いたフレーム does not mainly mean frames that calmed down in the past.
Instead, it describes the style of the frames as:

• subdued
• calm-looking
• mature
• not flashy

This is very common in Japanese: a verb form before a noun can act as a modifier.

So 落ち着いた here is best understood as a descriptive style word.

The basic action is おすすめする = to recommend.

So:

• おすすめしました = recommended
• おすすめしてくれました = recommended for me/us, doing me/us a favor

The くれる part adds a sense that the action was done for the speaker’s benefit or for someone close to the speaker.

So the sentence is not just a neutral the clerk recommended some frames.
It has a nuance like:

• the clerk kindly recommended some frames to us / for us

Japanese often leaves that kind of information unstated if it is clear from context.

In this sentence, くれました strongly suggests that the recommendation was beneficial to the speaker or the speaker’s side.

So the person being recommended to might be:

• the speaker
• the speaker and her
• the speaker’s companion

If you wanted to say it explicitly, Japanese could add something like:

• 私におすすめしてくれました = recommended it to me
• 彼女におすすめしてくれました = recommended it to her

But in natural Japanese, that is often omitted.

Strictly speaking, おすすめ is commonly treated as a noun, and the verb is おすすめする.

So:

• おすすめする = to recommend
• おすすめして = te-form
• おすすめしてくれました = recommended for me/us

This is a very common expression, especially in stores and customer service.

You may also see:

• 勧める
• お勧めする

But おすすめする sounds very natural in this context.

It can mean either, depending on context.

• 彼女 = she / her
• 彼女 can also mean girlfriend

In an isolated sentence like this, learners often read it as her unless the wider context makes girlfriend more likely.

So grammatically, either is possible. Context decides.

That is a normal spelling choice.

Glasses can be written in several ways:

• メガネ
• めがね
• 眼鏡

Katakana is very common for everyday items, especially when the writer wants a clean, easy-to-read look.

Also, フレーム is a loanword, so katakana is expected there.