Cruel way to make money (5)

I believe the answer is:

lucre

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

'money' is the definition.
(I know this)

'cruel way to' is the wordplay.
'cruel' can be anagrammed to 'LUCRE'.
But, I'm not clear how the anagram is indicated.

'make' is the link.

Can you help me to learn more?

(Other definitions for lucre that I've seen before include "Possession of the rich" , "ill-gotten gains" , "Money (especially when gained dishonourably)" , "There's money" , "Cruel kind of money, may be filthy" .)

I've seen this clue in the Evening Standard.

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