Calf's flesh (4)
I believe the answer is:
veal
'calf's flesh' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for veal that I've seen before include "Calf meat" , "cuisine" , "what the meat course may be" , "Calf's flesh as food" , "meat, R [ROSE] maybe" .)