Crossword Genius

Wrongfully arrest the first of dodgy dealers (7)

Ross

I believe the answer is:

traders

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

I don't understand the rest of the clue.

(Other definitions for traders that I've seen before include "Dealers" , "Sellers" , "businessmen" .)

I've seen this clue in The Guardian.
Want a hint initially instead of a full solution? Install my app