Cheese limb swallowed by cat (9)
I believe the answer is:
camembert
'cheese' is the definition.
(I know that Camembert is a cheese)
'limb swallowed by cat' is the wordplay.
'limb' becomes 'member' (I've seen this before).
'swallowed by' is an insertion indicator.
'member' going into 'cat' is 'CAMEMBERT'.
(Other definitions for camembert that I've seen before include "Soft creamy French cheese" , "soft fare" , "For something to eat" , "Rich soft French cheese" , "dairy product" .)