He has a record for service (4)
I believe the answer is:
help
'service' is the definition.
(synonyms)
'he has a record' is the wordplay.
'has' is a charade indicator (letters next to each other).
'a record' becomes 'lp' (abbreviation for long play record).
'he'+'lp'='HELP'
'for' acts as a link.
(Other definitions for help that I've seen before include "Be of service" , "record by the Beatles" , "Assistance" , "Assist, aid" , "Take what you want" .)