Same reforms with party treasurer (9)
I believe the answer is:
paymaster
'treasurer' is the definition.
(thesaurus)
'same reforms with party' is the wordplay.
'reforms with' indicates anagramming the letters.
'same' with its letters mixed up with 'party' can make 'PAYMASTER'.
(Other definitions for paymaster that I've seen before include "funding source" , "Government official" , "I hand out bread" , "One controlling through money" , "Salary official" .)