Largest of the Society Islands (6)
I believe the answer is:
tahiti
'largest of the society islands' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tahiti that I've seen before include "Pacific island associated with Gauguin" , "Windward island" , "Polynesian island where Gauguin lived" , "Gauguin's Pacific isle" , "Main island of French Polynesia" .)