Reviser (6)
I believe the answer is:
editor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">reviser</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 editor that I've seen before include "Newspaper or publication chief" , "Person who revises and prepares for publication" , "One who determines the final content of a text" , "Script-preparer" , "Senior journalist" .)