Philistine (4)
I believe the answer is:
boor
'philistine' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for boor that I've seen before include "oik" , "Coarse, ill-mannered person" , "Crude uncouth person" , "Rude, uncultivated person" , "Rude, uncultured type" .)