Expel from a country (6)
I believe the answer is:
deport
'expel from a country' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for deport that I've seen before include "Send home" , "Expel (a foreigner)" , "Banish (undesirable alien?)" , "conduct rarely seen nowadays?" , "Eject from country" .)