Island of French Polynesia whose largest city is Papeete (6)
I believe the answer is:
tahiti
(Other definitions for tahiti that I've seen before include "South Pacific island, capital Papeete" , "South Pacific island, linked to Paul Gauguin and Robert Louis Stevenson" , "Island in South Pacific, chief town Papeete" , "Windward island" , "Main island of society group, capital Papeete" .)