Reported butcher's offence (5)
I believe the answer is:
pique
'offence' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pique that I've seen before include "Resentment at a slight" , "Slight reaction" , "Arouse" , "Sudden irritation" , "Equip (anag.)" .)