Arthur of the court (4)
I believe the answer is:
ashe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arthur of the court</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 ashe that I've seen before include "Sporting champion once" , "He was good enough to win Wimbledon" , "tennis champ" , "US court star" , "Arthur, who came to court" .)