。
She usually gets home around six.
Literal
She [topic-は] usually six-o'clock-around [at-に] home [to-に] [returns-coming-toward-帰ってくる].
頃 ('around, approximately') attaches to time expressions to soften their precision: 六時頃 ('around six'), 三時頃 ('around three'), 子供の頃 ('around childhood' = 'when I was a child'). The に on 六時頃 marks it as a specific temporal point. 帰ってくる ('come home,' literally 'return + come') uses the directional auxiliary くる to anchor the homecoming as motion toward the speaker — the speaker is at home, watching for her arrival. Compare with 帰っていく for someone returning away from the speaker. たいてい ('usually, mostly') is a high-frequency adverb of habit, often paired with daily-routine verbs.