Guinness, for one (5)
'guinness for one' is the definition.
(guinness is a kind of ale)
This is all the clue.
(Other definitions for ale that I've seen before include "Alcohol" , "English beer, mild or bitter" , "One beer" , "Beerlike beverage" , "Beer procured in sales" .)
'guinness for one' is the definition.
(guinness is a kind of stout)
This is the entire clue.
(Other definitions for stout that I've seen before include "Portly - type of dark beer" , "Strong; drink" , "drinks?" , "Inured to fatigue and hardship" , "Portly - porter" .)