Polynesian island (6)
I believe the answer is:
tahiti
'polynesian island' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tahiti that I've seen before include "Pacific island associated with Gauguin" , "South Pacific island, linked to Paul Gauguin and Robert Louis Stevenson" , "I hit at the tropical island" , "One of the Society Islands" , "South Seas island, capital Papeete" .)