Egyptian citizen displays anger, breaking stick (7)
I believe the answer is:
cairene
'egyptian citizen' is the definition.
(person from Cairo)
'anger breaking stick' is the wordplay.
'anger' becomes 'ire' (synonyms).
'breaking' indicates putting letters inside.
'stick' becomes 'cane' (cane is a kind of stick).
'ire' placed inside 'cane' is 'CAIRENE'.
'displays' acts as a link.
(Other definitions for cairene that I've seen before include "one from African capital" , "Egyptian" .)