Rude and boorish (8)
I believe the answer is:
churlish
'rude and boorish' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for churlish that I've seen before include "Uncouth" , "Ill-mannered and surly" , "Ill-natured, boorish" , "Mean-spirited and surly" , "Rude and boorish" .)