Worst ring women give (6)
I believe the answer is:
bestow
'give' is the definition.
(bestowing is a kind of giving)
'worst ring women' is the wordplay.
'worst' becomes 'best' (both can mean to beat someone).
'ring' becomes 'o'.
'women' becomes 'w'.
'best'+'o'+'w'='BESTOW'
(Other definitions for bestow that I've seen before include "Confer, donate" , "Award, present as a gift" , "'Confer, present (6)'" , "Confer - impart" , "Give as a gift" .)