Tool wasted money (4)
I believe the answer is:
loot
'money' is the definition.
(loot can mean stolen money)
'tool wasted' is the wordplay.
'wasted' indicates an anagram.
'tool' with letters rearranged gives 'LOOT'.
(Other definitions for loot that I've seen before include "Booty; sack" , "Haul" , "familiar officer" , "Prize" , "Plunder and ransack" .)