Judge and jury? (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">judge and jury?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for triers that I've seen before include "They make an effort, don't give up" , "The Lord loves them, it's said" , "German city's" , "people making an effort" .)