Beating, I learn, egg into the drink (6,3)
I believe the answer is:
ginger ale
'the drink' is the definition.
(ginger ale is a kind of drink)
'beating i learn egg' is the wordplay.
'beating' is an anagram indicator.
'i'+'learn'+'egg'='ilearnegg'
'ilearnegg' with letters rearranged gives 'GINGER ALE'.
'into' acts as a link.
(Other definitions for ginger ale that I've seen before include "One drink" , "Fizzy drink" , "Spicy, sweetened non-alcoholic drink" , "pop" , "It won't make you drunk!" .)