Crossword Genius

Plus or minus sign, say (8)

Ross

I believe the answer is:

operator

(Other definitions for operator that I've seen before include "Controller, of a machine say" , "Person who controls machinery" , "Switchboard employee" , "Manipulative type of person" , "Driver" .)

I've seen this clue in The Guardian.
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.