Booze store making Methuselah's head spin (4)
I believe the answer is:
wine
'booze' is the definition.
(I know that wine is a more specific form of the action booze)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for wine that I've seen before include "Vino" , "Something made with 16?" , "Drink made from grapes" , "tipple" , "Alcoholic drink" .)