Abundant clothes left in sack (5)
I believe the answer is:
rifle
'sack' is the definition.
(both can mean to steal)
'abundant clothes left' is the wordplay.
'abundant' becomes 'rife' (similar in meaning).
'clothes' means one lot of letters goes inside another (some letters clothe or cover others).
'left' becomes 'l' (common abbreviation).
'rife' enclosing 'l' is 'RIFLE'.
'in' acts as a link.
(Other definitions for rifle that I've seen before include "Gun with long_barrel" , "Sack; firearm" , "Gun; thoroughly search" , "shoot?" , "Security provider with stock" .)