See corrupt criminal as one who troubles others (10)
I believe the answer is:
persecutor
'one who troubles others' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'see corrupt criminal' is the wordplay.
'criminal' indicates anagramming the letters.
'see'+'corrupt'='seecorrupt'
'seecorrupt' with letters rearranged gives 'PERSECUTOR'.
'as' is the link.
Can you help me to learn more?
(Other definitions for persecutor that I've seen before include "Saul, for one" , "tormentor" , "Persistent harasser" .)