Apple juice (5)
'apple juice' 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 "Alcoholic drink made from apples" , "Drink made from pears" , "Apple-based beverage" , "Drink made from apple juice" , "Alcohol from apples" .)
(Other definitions for ios that I've seen before include "Apple's mobile system, in short" , "Greek isle" , "Another Greek island" , "Greek island and mobile phone system" , "place?" .)