French Mediterranean island (7)
I believe the answer is:
corsica
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">french mediterranean island</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for corsica that I've seen before include "Napoleon Bonaparte was born on this French island" , "Mediterranean location" , "Island north of Sardinia" , "Island N. of Sardinia" , "French Mediterranean island" .)