Savant (4)
I believe the answer is:
sage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">savant</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 sage that I've seen before include "cheesemongers associate with Derby" , "Feature of herb garden" , "Velvety-leaved herb" , "Solon, for instance" , "Culinary herb" .)