Feature of golfing Masters — one embraced in another sport (8)
I believe the answer is:
swimming
'sport' is the definition.
(swimming is a kind of sport)
'feature of golfing masters one embraced in another' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
'in' is within the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for swimming that I've seen before include "Travelling through water" , "Moving through water" , "Bathing" , "Doing crawl" , "Filled with tears" .)