Pagan (7)
I believe the answer is:
heathen
'pagan' is the definition.
(I know that pagan can be written as heathen)
This is all the clue.
(Other definitions for heathen that I've seen before include "Non-believer" , "Uncultured" , "Savage" , "Unbeliever" , "Infidel, pagan" .)