One bent on blagging? (5)
I believe the answer is:
crook
'one bent' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for crook that I've seen before include "Hooked staff" , "Something kinky" , "Fence, perhaps" , "Shepherd's staff" , "Well, no" .)