Club doctor bound leg (8)
I believe the answer is:
bludgeon
'club' is the definition.
(bludgeon is a kind of club)
'doctor bound leg' is the wordplay.
'doctor' is an anagram indicator.
'bound'+'leg'='boundleg'
'boundleg' with letters rearranged gives 'BLUDGEON'.
(Other definitions for bludgeon that I've seen before include "Stick or club with a heavy end" , "Thick club" , "Cudgel" , "Beat repeatedly with a heavy object" , "Club used as a weapon" .)