Apple drink (5)
I believe the answer is:
'apple drink' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cider that I've seen before include "Drink made from apple juice" , "Drink made from pears" , "Apple-based drink" , "Drink made from fermented apples" , "Beverage from apple juice" .)