South Pacific island group (5)
I believe the answer is:
samoa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">south pacific island group</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for samoa that I've seen before include "Pacific islands state" , "Commonwealth country in the Pacific, capital Apia" , "Pacific island nation, capital Apia" , "Polynesian isle" , "Polynesian island group" .)