What does the cryptic crossword clue "Flier poet drops in (4)" mean?

The definition is "Flier". The wordplay uses a deletion. (deletion) + LARK (deletion) = LARK; definition: "Flier" The answer is LARK.

Flier poet drops in (4)

Guardian Cryptic #29658 | 2 Down | 2025-04-02 flower