Squeal on a big noise (6)

I believe the answer is:

report

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'squeal on a big noise' is the definition.
'report' can be an answer for 'noise' (report is a kind of noise). I am not sure about the 'squeal on a big' bit.

'on a big noise' is the wordplay.
'on' becomes 're' (regarding).
'a big noise' becomes 'port' (I can't justify this - if you can you should give a lot more credence to this answer).
're'+'port'='REPORT'

Can you help me to learn more?

(Other definitions for report that I've seen before include "Inform about the sound of thegun" , "'Description, account (6)'" , "Formal account of a matter" , "Formal statement" , "Sudden noise (gunfire)" .)

I've seen this clue in the Evening Standard.

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