Shadrach forged coins (4,4)

I believe the answer is:

hard cash

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

'shadrach forged coins' is the definition.
I can't judge whether this defines the answer.

'shadrach forged' is the wordplay.
'forged' indicates anagramming the letters.
'shadrach' with letters rearranged gives 'HARD CASH'.

Can you help me to learn more?

(Other definitions for hard cash that I've seen before include "Coins and banknotes - not a cheque" , "Not plastic!" , "Ready money" , "Coins and notes, not cheques or promises" .)

I've seen this clue in The Telegraph.

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