Editorial overruling (4)
I believe the answer is:
stet
'editorial overruling' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stet that I've seen before include "Printing term" , "As written, don't change" , "Let it stand (on proof)" , "Word to cancel change" , "Let it remain (printing)" .)