Crossword Genius

In favour of German criminal (6)

Ross

I believe the answer is:

forger

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'criminal' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'in favour of german' is the wordplay.
'in favour of' becomes 'for' (being for a particular cause).
'german' becomes 'ger' (abbreviation).
'for'+'ger'='FORGER'

Can you help me to learn more?

(Other definitions for forger that I've seen before include "Person who makes phoney bank notes" , "Criminal who makes dud bank notes" , "who makes a lot of money?" , "Maker of false bank-notes" , "Ironworker" .)

I've seen this clue in The Times.
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