Roasting fowl (5)
I believe the answer is:
capon
'roasting fowl' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for capon that I've seen before include "for lunch, perhaps" , "Castrated cock fowl" , "fowl fattened for pot" , "one fattened specially" , "A tasty bird" .)