Forges money and gets rich? (5,2)

I believe the answer is:

coins it

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'forges' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'money and gets rich?' is the wordplay.
'money' becomes 'coin' (I've seen this before).
'and' is a charade indicator (letters next to each other).
'gets rich?' becomes 'sit' (I can't explain this - if you can you should give a lot more credence to this answer).
'coin'+'sit'='COINS IT'

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I've seen this clue in The Times.

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