Earnest appeal (4)
I believe the answer is:
plea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">earnest appeal</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 plea that I've seen before include "Excuse - pretext" , "Defence - excuse - appeal" , "Request for mercy?" , "Answer made by the accused to the charge" , "Excuse, entreaty" .)