Unpopular camper (6)
I believe the answer is:
snorer
'unpopular camper' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for snorer that I've seen before include "Maker of raucous nocturnal sounds" , "Someone who makes snorting noises while asleep" , "Noisy sleeper" .)