Crossword Genius

Potato possibly cut underground (4)

Ross

I believe the answer is:

tube

'underground' is the definition.
(the London Underground is nicknamed the Tube)

'potato possibly cut' is the wordplay.
'potato possibly' becomes 'tuber' (potato is an example of a tuber).
'cut' means to remove the last letter.
'tuber' with its last letter taken off is 'TUBE'.

(Other definitions for tube that I've seen before include "Underground transport", "Valve", "Pipe; underground train", "appearing tinny?", "Pipe (with trains?)".)

I've seen this clue in The Telegraph.
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.