Meat from grouse (4)
I believe the answer is:
beef
This clue is a double definition.
'meat' is the first definition.
(beef is a kind of meat)
'grouse' is the second definition.
(synonyms)
'from' acts as a link.
(Other definitions for beef that I've seen before include "Meat of the cow" , "Bovine flesh" , "Complain; meat" , "Meat - complaint" , "nickname of US State" .)