Dishonest person (4)
'dishonest person' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for rogue that I've seen before include "Charlatan" , "Unprincipled man" , "Bad person" , "Deceitful and unreliable scoundrel" , "Diverging from type" .)
(Other definitions for crook that I've seen before include "Shepherd's staff" , "Fence, perhaps" , "Well, no" , "Professional criminal" , "Bend; criminal; staff" .)
'dishonest person' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for liar that I've seen before include "Dissembler" , "man of fiction?" , "Untruthful person (Billy in Schlesinger film)" , "Not a truth-sayer!" , "Worse than a thief" .)