Argue in court (5)
I believe the answer is:
plead
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">argue in court</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 plead that I've seen before include "Make an emotional appeal" , "Request" , "Implore, entreat" , "Present an argument in court" , "Appeal earnestly" .)