Diplomatic officer for local representative, so it's said (10)
I believe the answer is:
counsellor
'diplomatic officer' is the definition.
(counsellor is a type of diplomatic officer)
'local representative so it's said' is the wordplay.
'local representative' becomes 'councillor' (someone sitting on a council).
'so it's said' shows a homophone (sound like).
'councillor' is a homophone of 'COUNSELLOR'.
'for' acts as a link.
(Other definitions for counsellor that I've seen before include "Adviser; a senior diplomat" , "One who advises" , "Therapist" .)