Crossword Genius

Knock bust over (4)

Ross

I believe the answer is:

stub

'knock' is the definition.

'bust over' is the wordplay.
'over' is an anagram indicator.
'bust' is an anagram of 'STUB'.

(Other definitions for stub that I've seen before include "Pencil/cigarette remnant" , "Strike against hard object - one's toe, perhaps" , "what smoker drops in street?" , "Residue of cigarette or cheque" , "Broken-off end" .)

I've seen this clue in The Mirror and The Daily Express.
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.