Onset of ear-splitting noise overwhelming western man (5)

I believe the answer is:

edwin

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'man' is the definition.
(I've seen this before)

'onset of ear-splitting noise overwhelming western' is the wordplay.
'onset of' indicates taking the first letters.
'splitting' indicates putting letters inside (some letters split a word into two).
'noise' becomes 'din' (din can mean a loud noise or disturbance).
'overwhelming western' becomes 'w' (I am not sure about the 'overwhelming' bit.).
The first letter of 'ear' is 'e'.
'din' going around 'w' is 'dwin'.
'e'+'dwin'='EDWIN'

Can you help me to learn more?

(Other definitions for edwin that I've seen before include "Fellow" , "-- Hubble (astronomer)" , "and 19: Dickensian character" , "Man" , "C7 king of Northumbria" .)

I've seen this clue in The Times.

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