Rum sale? Drinks! (4)
I believe the answer is:
ales
'drinks' is the definition.
(ale is a kind of drink)
'rum sale?' is the wordplay.
'rum' indicates an anagram (rum can mean strange or unusual).
'sale' with letters rearranged gives 'ALES'.
(Other definitions for ales that I've seen before include "Types of beer" , "A sale of beers" , "Alcoholic drinks" , "What might be delivered by pumps" .)