Vulgarian (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
boor
'vulgarian' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for boor that I've seen before include "Crude uncouth person" , "Rude, uncultivated person" , "Lout" , "Rude uncouth person" , "Rough, bad-mannered person" .)