Potter's signal? (3)

I believe the answer is:

cue

(Other definitions for cue that I've seen before include "Billiards stick" , "Signal for player" , "Catchword" , "Snooker rod" , "Signal to begin - tapered stick" .)

I've seen this clue in The Sun.

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.