Loin and leg of a quadruped (6)
I believe the answer is:
haunch
'loin and leg of a quadruped' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for haunch that I've seen before include "Fleshy hindquarter of an animal" , "Hip and buttock" , "rump" , "Leg and loin of meat" , "part of leg" .)