Expatriates (6)
I believe the answer is:
exiles
'expatriates' is the definition.
('exile' can be a synonym of 'expatriate')
This is the entire clue.
(Other definitions for exiles that I've seen before include "They live away from their own country" , "Outlaws" , "They go abroad, maybe to escape tax" , "They live away from their homeland" , "They live outside their home countries" .)