Harvester (6)
I believe the answer is:
reaper
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">harvester</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that harvester can be written as reaper)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for reaper that I've seen before include "Harvester - death is a grim one" , "Farm worker" , "Wordsworth's was Solitary" , "being grim when you're late" , "Crop harvester" .)