Wanted Western felon (6)
I believe the answer is:
outlaw
'wanted western felon' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for outlaw that I've seen before include "Irish Tory" , "He broke the rules in the old West" , "Ban, make illegal" , "Ban, prohibit by legislation" , "A fugitive from legal justice" .)