'hawaiian greeting' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for aloha that I've seen before
include
"A halo seen in Polynesian greeting"
,
"Hawaiian farewell"
,
"Hawaiian greeting"
,
"Hi! in Honolulu"
,
"16 across in Hawaii"
.)
I've seen this clue in the King Feature Syndicate, the Sydney Morning Herald, the USA Today, The Irish Times, The Mirror, The Guardian, The Independent, The Sun, The Telegraph, The Times, the Universal, The New York Times, the Newsday and The Wall Street Journal.
I've seen this clue in the King Feature Syndicate, the Sydney Morning Herald, the USA Today, The Irish Times, The Mirror, The Guardian, The Independent, The Sun, The Telegraph, The Times, the Universal, The New York Times, the Newsday and The Wall Street Journal.