Puss eats leg, perhaps, with cheese (9)
I believe the answer is:
camembert
'cheese' is the definition.
(I know that Camembert is a type of cheese)
'puss eats leg perhaps' is the wordplay.
'puss' becomes 'cat' (I've seen this in other clues).
'eats' is an insertion indicator.
'leg perhaps' becomes 'member' (leg is a kind of member).
'cat' enclosing 'member' is 'CAMEMBERT'.
'with' is the link.
(Other definitions for camembert that I've seen before include "dairy product" , "French produce" , "Soft creamy French cheese" , "For something to eat" , "Soft rich cheese as made in Normandy" .)