Money made by professional joining top players in audition (8)
I believe the answer is:
proceeds
'money made' is the definition.
(as in the money made by a business venture)
'professional joining top players in audition' is the wordplay.
'professional' becomes 'pro' (synonyms).
'joining' says to put letters next to each other.
'top players' becomes 'seeds' (eg seeded players in tennis or other sports).
'in audition' shows a homophone (sound like) (audition can mean hearing).
'seeds' is a homophone of 'ceeds'.
'pro'+'ceeds'='PROCEEDS'
'by' is the link.
(Other definitions for proceeds that I've seen before include "Income, from an event say" , "Returns" , "Profits" , "Takings; advances" , "Moves ahead, goes forward" .)