Mediterranean microstate (6)
I believe the answer is:
monaco
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mediterranean microstate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that Monaco is a microstate)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for monaco that I've seen before include "Oman Co. (anag)" , "Med principality" , "Small European principality" , "Constitutional monarchy on the French Riviera" , "Southwest European principality" .)