What does the cryptic crossword clue "Voracious eater of filo custard slice (6)" mean?

The definition is "Voracious eater". The wordplay uses a hidden word. Hidden in "voracious eater of fiLO CUSTard slice" The answer is LOCUST.

Voracious eater of filo custard slice (6)

Guardian Cryptic #29318 | 23 Down | 2024-02-29 flower