Parting sports arena after Ballesteros maybe (8)
I believe the answer is:
severing
'parting' is the definition.
(severing is a kind of parting)
'sports arena after ballesteros maybe' is the wordplay.
I cannot really see how this works, but
'arena' could be 'ring' (I've seen this in other clues) and 'ring' is found within the answer.
'ballesteros' could be 'seve' (golfer Seve Ballesteros) and 'seve' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for severing that I've seen before include "Cutting off, separating" , "parting" .)