French food associate fed to pet (9)
I believe the answer is:
camembert
'french food' is the definition.
(I've seen this before)
'associate fed to pet' is the wordplay.
'associate' becomes 'member' (member is a kind of associate).
'fed to' is an insertion indicator.
'pet' becomes 'cat' (I've seen this in another clue).
'member' going inside 'cat' is 'CAMEMBERT'.
(Other definitions for camembert that I've seen before include "Rich soft French cheese" , "soft fare" , "dairy product" , "For something to eat" , "French food" .)