Crazy bargains: unopened alcoholic drink (7)
I believe the answer is:
sangria
'alcoholic drink' is the definition.
'sangria' can be an answer for 'drink' (type of alcoholic drink). I am not certain of the 'alcoholic' bit.
'crazy bargains unopened' is the wordplay.
'crazy' is an anagram indicator.
'unopened' means to remove the first letter (without opening letter).
'bargains' with its first letter taken off is 'argains'.
'argains' is an anagram of 'SANGRIA'.
Can you help me to learn more?
(Other definitions for sangria that I've seen before include "Drink - Iran gas (anag)" , "found in Spanish bars" , "Spanish drink based on red wine" , "Spanish drink of red wine, sugar and fruit" , "Spanish spiced wine" .)