Cheese briefly insect-free (4)

I believe the answer is:

brie

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'cheese' is the definition.
(Brie is an example)

I can't explain the rest of the clue.

(Other definitions for brie that I've seen before include "French produce" , "Variety of cheese" , "cheese-producing region" , "Bergamot-flavoured tea" , "French cream cheese" .)

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