Inform on a big noise (6)

I believe the answer is:

report

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This clue could be a double definition.

'inform on' is the first definition.
(synonyms)

'a big noise' is the second definition.
'report' can be an answer for 'noise' (report is a kind of noise). I'm unsure of the 'a big' bit.

Can you help me to learn more?

(Other definitions for report that I've seen before include "Inform about the sound of thegun" , "Give an account" , "Porter (anag.)" , "Make a complaint about (someone)" , "A loud bang, or an account" .)

I've seen this clue in the Evening Standard.

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