Achieve approval with small fists (5)

I believe the answer is:

dooks

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'fists' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'achieve approval with small' is the wordplay.
'achieve' becomes 'do'.
'approval' becomes 'ok' (OK is an example).
'with' is a charade indicator (letters next to each other).
'small' becomes 's' (abbreviation - e.g. clothes size).
'do'+'ok'+'s'='DOOKS'

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

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