Camper unusually protects land (4)
I believe the answer is:
peru
'land' is the definition.
(Peru is a country)
'camper unusually protects' is the wordplay.
'protects' indicates a hidden word (I've seen 'protected' mean this (hidden letters are protected)).
'PERU' is hidden within 'camper unusually'.
(Other definitions for peru that I've seen before include "Mario Vargas Llosa's native land" , "Machu Picchu country" , "Land of the Incas" , "South American state" , "Homeland of Paddington Bear" .)