Crossword Genius

Came up to scratch as a roundsman? (9,3,5)

Ross

I believe the answer is:

delivered the goods

I'm a little stuck... Click here to teach me more about this clue!

'came up to scratch' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'as a roundsman?' is the wordplay.
I cannot quite see how this works, but
'as' could be 'eg' (I've seen this in other clues) and 'eg' is found within the answer.
This explanation may well be incorrect...

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