Reindeer herders (5)
I believe the answer is:
'reindeer herders' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lapps that I've seen before include "Northern Scandinavians" , "northerners" , "Nomadic hunters" , "Scandinavian nomads" , "Nomadic people of northern Scandinavia" .)