Tool returned for money (4)
I believe the answer is:
loot
'money' is the definition.
(I've seen this before)
'tool returned' is the wordplay.
'returned' says the letters should be written in reverse.
'tool' in reverse letter order is 'LOOT'.
'for' is the link.
(Other definitions for loot that I've seen before include "Prize" , "Steal property (in war)" , "Plunder and ransack" , "Pillage; money" , "Orton play; money" .)