Not making much money as an engraver? (10,1,6)

I believe the answer is:

scratching a living

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'not making much' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'money as an engraver?' is the wordplay.
I cannot quite see how this works, but
'money' could be 'scratch' (I've seen this before) and 'scratch' is present in the answer.
'an' could be 'i' (Roman numeral for one) and 'i' is found in the answer.
This explanation may well be incorrect...

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I've seen this clue in the Evening Standard.

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