Editorial symbol (5)

I believe the answer is:

caret

(Other definitions for caret that I've seen before include "Indicator of omission" , "Symbol to show something is to be inserted" , "Proofreader's sign of omission" , "It shows what to put in" , "Sign something's lacking" .)

I've seen this clue in the Newsday.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.