Court rough with bad kidnapper (8)
I believe the answer is:
abductor
'kidnapper' is the definition.
(synonyms)
'court rough with bad' is the wordplay.
'rough with' is an anagram indicator (a rough or broken ordering of the letters).
'court' with its letters mixed up with 'bad' makes 'ABDUCTOR'.
(Other definitions for abductor that I've seen before include "Paris, for example" , "Muscle" , "Taker (of someone)" , "Person snatching, eg, a child" , "Kidnapper" .)