Dickens's Drood (5)
I believe the answer is:
edwin
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dickens's drood</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for edwin that I've seen before include "-- Hubble (astronomer)" , "Northumbrian king" , "old king" , "Old king's" , "and 21 Across: Dickens character" .)