Talk about unfinished piece of sports equipment (6)

I believe the answer is:

discus

'piece of sports equipment' is the definition.

'talk about unfinished' is the wordplay.
'talk about' becomes 'discuss' (discussing is a kind of talking about).
'unfinished' means to remove the last letter.
'discuss' with its last letter taken away is 'DISCUS'.

(Other definitions for discus that I've seen before include "Round object thrown in sport" , "Object thrown by athletes" , "Circular projectile" , "Athlete's projectile" , "Athletics field event" .)

I've seen this clue in The Times.

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.