Natives of Peru (5)
I believe the answer is:
incas
'natives of peru' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for incas that I've seen before include "People from Andes who settled in Peru" , "Old South American royals" , "Cain's people in old Peru" , "South Americans whose empire fell to Spain" , "Old Peruvians" .)