Answer: reviser

AnswerCrossword Clue
REVISEREditor
REVISEREditor, often
REVISEREmendator.
REVISERProofreader.
REVISERCopy reader.
REVISEROne who edits
REVISERHe mends and emends
REVISERRedactor
REVISERAgent of change
reviserone who revises, also REVISOR