Crossword Genius

A colon? (5,4)

Ross

I believe the answer is:

inner tube

(Other definitions for inner tube that I've seen before include "inflatable ring" , "What cyclist pumps up" , "Tyre filler" , "rubber ring" , "One used to inflation going by bicycle" .)

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.