Hawaiian farewell (5)
I believe the answer is:
aloha
'hawaiian farewell' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aloha that I've seen before include "greeting in Oahu" , "A Polynesian hello or goodbye" , "Hi! in Honolulu" , "Hello from Honolulu?" , "A greeting in Hawaii" .)