Intimidating regarding a win in top grade (9)

I believe the answer is:

overawing

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'intimidating' is the definition.
The definition and answer can be both to do with human feelings as well as being present participle verbs.
Perhaps you can see an association between them that I can't see?

'regarding a win in top grade' is the wordplay.
'regarding' becomes 'over' (over can mean regarding or about).
'win' becomes 'w' (abbreviation in sport).
'top' suggests taking the first letters (in a down clue, the first letter is top).
The first letter of 'grade' is 'g'.
'over'+'a'+'w'+'in'+'g'='OVERAWING'

Can you help me to learn more?

(Another definition for overawing that I've seen is " Terrifying".)

I've seen this clue in the Sydney Morning Herald.

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