Baddie (6)
'baddie' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for rogue that I've seen before include "Impish, likeable person" , "Fraud" , "Diverging from type" , "Rapscallion" , "Old Greek" .)
(Other definitions for meanie that I've seen before include "Selfish type (informal)" , "nasty type" , "nasty person" , "Nasty piece of work?" , "Unkind person (informal)" .)