Cricket arbiter (6)
I believe the answer is:
umpire
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cricket arbiter</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for umpire that I've seen before include "The ref in cricket match" , "A field judge in circket" , "Official at a cricket match" , "Game judge" , "Adjudicator in games such as cricket, tennis etc" .)