Defeats (5)
'defeats' is the definition.
(beating is a kind of defeating)
This is all the clue.
(Other definitions for beats that I've seen before include "Tans" , "Rhythms" , "Buffets" , "Regular routes for policemen" .)
'defeats' is the definition.
(besting is a kind of defeating)
This is all the clue.
(Another definition for bests that I've seen is " Worsts".)