Adriatic, for example (3)
I believe the answer is:
sea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">adriatic for example</span>' is the definition.<br/ ><span class="explanation-format__explanation">(adriatic is a kind of sea)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sea that I've seen before include "It's stocked with fish" , "E.g. Baltic" , "Large expanse of water" , "Lesser ocean" , "70% of the earth's surface" .)