Booze alongside drinking money (6)
I believe the answer is:
brandy
'booze' is the definition.
(I know that brandy is a type of liquor)
'alongside drinking money' is the wordplay.
'alongside' becomes 'by' (I've seen this in other clues).
'drinking' indicates putting letters inside (inserted letters are consumed or drunk).
'money' becomes 'rand' (currency of South Africa).
'by' placed around 'rand' is 'BRANDY'.
(Other definitions for brandy that I've seen before include "Of a legal entity acting as an individual" , "Cognac, calvados, armagnac etc" , "Hero's drink of choice?" , "Reviving alcoholic spirit" , "& 24 Mincepie accompaniment" .)