Condemn to exile (6)
I believe the answer is:
banish
'condemn to exile' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for banish that I've seen before include "Condemn to exile" , "Exile in ash-bin" , "Drive away, maybe from country" , "Deport, exile" , "Send into exile" .)