Crossword Genius

Crime in gang of men? (11)

Ross

I believe the answer is:

malefaction

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

'crime' is the definition.
(I've seen this before)

'in gang of men?' is the wordplay.
I cannot quite understand how this works, but
'of' could be 'o' and 'o' is found within the answer.
'in' is found in the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for malefaction that I've seen before include "Crime" , "criminal act" .)

I've seen this clue in The Telegraph.
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