People within coups can't be reformed (9)
I believe the answer is:
occupants
'people' is the definition.
(occupant is a kind of person)
'coups can't be reformed' is the wordplay.
'be reformed' indicates an anagram.
'coups'+'cant'='coupscant'
'coupscant' is an anagram of 'OCCUPANTS'.
'within' acts as a link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for occupants that I've seen before include "Users" , "people inside?" .)