Karate expert (3)
I believe the answer is:
dan
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">karate expert</span>' is the definition.<br/ ><span class="explanation-format__explanation">(person who has been awarded a dan in karate)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dan that I've seen before include "-- Dare, comic hero" , "The 19's first archer" , "book (abbreviated version)" , "Expertise level in juso" , "Dark and damp." .)