Questions & Answers about Директор ответил лично.
Директор is in the nominative case because it is the subject of the sentence — the person who did the action.
So in Директор ответил лично, директор = the director / the principal / the manager, depending on context.
Ответил is the past tense masculine singular form of the verb.
Russian past tense agrees with gender and number:
- ответил = he answered / a masculine person answered
- ответила = she answered
- ответило = it answered
- ответили = they answered
Because директор is grammatically masculine here, the verb is ответил.
Лично means personally.
In this sentence, it suggests that the director answered:
- in person
- himself
- personally, not through someone else
So the idea is something like: the director did not delegate the reply.