One chose sides and made date for a drink (4,3)
I believe the answer is:
iced tea
'a drink' is the definition.
(iced tea is a kind of drink)
'one chose sides and made date' is the wordplay.
'one' becomes 'I' (Roman numeral).
'sides' means to remove the middle letters (only the letters on the sides are used).
'and' says to put letters next to each other.
'made' is an anagram indicator.
'chose' with its centre taken out is 'ce'.
'date' anagrammed gives 'dtea'.
'i'+'ce'+'dtea'='ICED TEA'
'for' is the link.
(Other definitions for iced tea that I've seen before include "Chilled drink" , "Cold summer drink" , "Cool drink" .)