Discharged agent gets help (6)
I believe the answer is:
repaid
'discharged' is the definition.
'agent gets help' is the wordplay.
'agent' becomes 'rep' (short for representative).
'gets' says to put letters next to each other.
'help' becomes 'aid' (synonyms).
'rep'+'aid'='REPAID'
(Other definitions for repaid that I've seen before include "Diaper (anag.)" , "Reimbursed" , "Refunded or rewarded" , "Recompensed" , "Returned" .)