Leg of lamb or mutton (5)
I believe the answer is:
gigot
This clue is a double definition.
'leg of lamb' is the first definition.
(synonyms)
'mutton' is the second definition.
(I've seen this before)
(Other definitions for gigot that I've seen before include "Perceive by touch" , "joint of meat" , "Mutton or lamb leg" , "A bit of mutton" .)