Bishop always with time for a drink (8)
I believe the answer is:
beverage
'for a drink' is the definition.
('beverage' can be a synonym of 'drink')
'bishop always with time' is the wordplay.
'bishop' becomes 'B' (chess abbreviation).
'always' becomes 'ever' (synonyms).
'with' says to put letters next to each other.
'time' becomes 'age' (an age is a period of time).
'b'+'ever'+'age'='BEVERAGE'
(Other definitions for beverage that I've seen before include "Any drink, say a beer" , "Drink other than water" , "such as a Frappuccino" , "Non-alcoholic drink" , "Liquid for drinking" .)