I'm a bent criminal in background (7)
I believe the answer is:
ambient
'i'm a bent criminal in background' is the definition.
I can't judge whether this defines the answer.
'i'm a bent criminal' is the wordplay.
'criminal' is an anagram indicator.
'im'+'a'+'bent'='imabent'
'imabent' is an anagram of 'AMBIENT'.
Can you help me to learn more?
(Other definitions for ambient that I've seen before include "Relating to the immediate surroundings" , "Going round" , "Relaxation music" , "Relating to the immediate environs" , "Bait men to find surrounding, say, light" .)