Mark of a law-breaker out East (4)
I believe the answer is:
weal
'mark' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for weal that I've seen before include "Raised scar" , "Mark of wound - welfare" , "Welt" , "Sign of injury" , "Mark, scar of blow on skin" .)