After golf, re-enter briefly with a drink (5,3)
I believe the answer is:
green tea
'drink' is the definition.
(type of tea)
'after golf re-enter briefly with a' is the wordplay.
'after' is a charade indicator (letters next to each other).
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'briefly' means to remove the last letter.
'with' means one lot of letters go next to another.
'enter' with its last letter removed is 'ente'.
'g'+'re' is 'gre'.
'gre'+'ente'+'a'='GREEN TEA'
(Other definitions for green tea that I've seen before include "Infusion" , "Beverage" , "Brewed" , "Drink - generate (anag)" , "brew-up?" .)