Answer: bluepencil

AnswerCrossword Clue
BLUEPENCIL

Mark through, to editors

BLUEPENCIL

Correct spelling, e.g.

BLUEPENCIL

Revise writing

BLUEPENCIL
Alter a manuscript, e.g.
BLUEPENCIL
Edit
BLUEPENCILImplement for frustrating writers.
BLUEPENCILRedact
BLUEPENCILRevise a manuscript, e.g.
BLUEPENCILEditor's tool
BLUEPENCILSource of smut?