Machu Picchu dweller (4)
I believe the answer is:
inca
'machu picchu dweller' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for inca that I've seen before include "member of historic race" , "Member of ancient Peruvian tribe" , "Ancient inhabitant of Peru" , "Old Peruvian descended from Cain" , "Ancient South American" .)