Parting word in Spain (5)
I believe the answer is:
adios
'parting word in spain' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for adios that I've seen before include "Bye!" , "Farewell amigo!" , "Au revoir, amigo!" , "Good-bye (Sp.)" , "So long, amigo" .)