Just one point ahead, was the victor (3)
I believe the answer is:
won
'just one' is the definition.
The definition and answer can be both quantities as well as being singular nouns.
Maybe there's a link between them I don't understand?
'point ahead was the victor' is the wordplay.
I cannot really see how this works, but
'point' could be 'w' (West) and 'w' is located in the answer.
'ahead' could be 'on' (synonyms) and 'on' is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for won that I've seen before include "Korean currency, was victorious" , "Gained a victory" , "little cash in Korea" , "and 26: Chinese dumpling" , "Came first" .)