UN member since 1966 (8)
I believe the answer is:
barbados
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">un member since 1966</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for barbados that I've seen before include "Caribbean location" , "Island in West Indies, capital Bridgetown" , "Most easterly West Indies island" , "Bridgetown is its capital city" , "holiday island" .)