Policeman with precise advice, reportedly, for local governing body (8,7)

I believe the answer is:

district council

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'policeman with precise advice reportedly' is the definition.
I can't tell whether this defines the answer.

'local governing body' is the wordplay.
'local' becomes 'district' ('district' can be similar in meaning to 'local'**).
'governing body' becomes 'council' (I've seen this before).
'district'+'council'='DISTRICT COUNCIL'

'for' is the link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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