A criminal talent? (4)
I believe the answer is:
bent
I believe this clue is a double definition.
'a criminal' is the first definition.
(I've seen this before)
'talent?' is the second definition.
(bent is a kind of talent)
(Other definitions for bent that I've seen before include "Crooked; grass" , "Distorted" , "Natural skill to be slangily dishonest?" , "Crooked; disposition" , "Natural aptitude" .)