Paid for having become violent (6,3)
I believe the answer is:
lashed out
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for lashed out that I've seen before include "struck at random" , "getting castigated" , "Spent money freely" , "Attacked with words or blows - or whip?" , "Spent extravagantly" .)