One providing meat - part of the leg (4)
I believe the answer is:
calf
'part of the leg' is the definition.
('calf' is part of 'leg')
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for calf that I've seen before include "Young bovine animal" , "Baby cow" , "Young of domestic cattle" , "Bovine youngster" , "Young moo-er" .)