Cock leg beyond limit (5)
I believe the answer is:
capon
'cock' is the definition.
(I've seen this before)
'leg beyond limit' is the wordplay.
'leg' becomes 'on' (cricket term, fielding positions).
'beyond' says to put letters next to each other.
'limit' becomes 'cap' (capping is a kind of limiting).
'on' put after 'cap' is 'CAPON'.
(Other definitions for capon that I've seen before include "Castrated fowl, for eating" , "Castrated bird" , "Male chicken for eating" , "Castrated cock fowl" , "Bird fattened for eating" .)