Offence, resentment (7)
I believe the answer is:
umbrage
I believe this clue is a double definition.
'offence' is the first definition.
(I know that offence can be written as umbrage)
'resentment' is the second definition.
(I've seen this in another clue)
(Other definitions for umbrage that I've seen before include "Displeasure" , "Take this to be offended" , "It''s given or taken in offence" , "Offence that's usually taken" , "Feeling of anger caused by being offended" .)