Correct, check (4)
I believe the answer is:
edit
This clue is a double definition.
'correct' is the first definition.
(edit can mean to correct or emend)
'check' is the second definition.
(edit can mean to check or emend)
(Other definitions for edit that I've seen before include "Prepare (text) for issue" , "work on newspaper?" , "be a bookmaker" , "Rewrite" , "Be in charge (of paper)" .)