Utterance duplicated in the Coroner's records (3)

I believe the answer is:

cor

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'utterance duplicated' is the definition.
I can't judge whether this definition defines the answer.

'in the coroner's records' is the wordplay.
'in' says the answer is hidden in the clue.
'COR' is hidden within 'coroner records'.

Can you help me to learn more?

(Other definitions for cor that I've seen before include "Expression of surprise" , "Gosh" , "Blimey" , "Surprised expression" .)

I've seen this clue in the Evening Standard.

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