Lawyer discards fine cheese (4)
I believe the answer is:
brie
'cheese' is the definition.
(I know that Brie is a cheese)
'lawyer discards fine' is the wordplay.
'lawyer' becomes 'brief' (I've seen this before).
'discards' is a deletion indicator.
'fine' becomes 'f' (abbreviation).
'brief' with 'f' removed is 'BRIE'.
(Other definitions for brie that I've seen before include "Round soft Fr. cheese" , "French produce" , "Kind of soft cheese" , "cheesy stuff" , "Variety of cheese" .)