Bad result hurt (6)
I believe the answer is:
offend
'hurt' is the definition.
('offend' can be a synonym of 'hurt')
'bad result' is the wordplay.
'bad' becomes 'off' (I've seen this before).
'result' becomes 'end' (I've seen this before).
'off'+'end'='OFFEND'
(Other definitions for offend that I've seen before include "Cause displeasure to, bruise feelings" , "Outrage" , "Commit crime - hurt feelings" , "Distress" , "Insult - act criminally" .)