Crossword Genius

First among the man's crimes (6)

Ross

I believe the answer is:

heists

'crimes' is the definition.
(heist is a kind of crime)

'first among the man's' is the wordplay.
'first' becomes 'ist' (ist resembles hst).
'among' indicates putting letters inside.
'the man's' becomes 'hes' ('he is' means a particular man is).
'ist' placed into 'hes' is 'HEISTS'.

(Another definition for heists that I've seen is " Do thesis about American robberies".)

I've seen this clue in The Independent.
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