Point won, having received ball supply (5)
I believe the answer is:
endow
'supply' is the definition.
(I've seen this in another clue)
'point won having received ball' is the wordplay.
I cannot quite see how this works, but
'point' could be 'end' (end point is a kind of point) and 'end' is located in the answer.
'won' could be 'w' (I've seen this in other clues) and 'w' is present in the answer.
'ball' could be 'o' (O looks like a ball) and 'o' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for endow that I've seen before include "Bestow" , "Furnish, award" , "Provide funds" , "Provide with a permanent income, say a school" , "Fund" .)