Crossword Genius

Food item fly has left momentarily (4)

Ross

I believe the answer is:

brie

'food item' is the definition.
(type of cheese)

'fly has left momentarily' is the wordplay.
'has left' is a deletion indicator.
'momentarily' becomes 'briefly' (synonyms).
'briefly' with 'fly' taken out is 'BRIE'.

(Other definitions for brie that I've seen before include "French cream cheese" , "cheese-producing region" , "Soft, creamy French cheese" , "Variety of cheese" , "cheesy stuff" .)

I've seen this clue in The Telegraph.
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