Increased amount of liquor is enjoyed (5)
I believe the answer is:
risen
'increased' is the definition.
(rising is a kind of increasing)
'amount of liquor is enjoyed' is the wordplay.
'amount of' says the answer is hidden in the clue (a certain amount of the clue).
'RISEN' can be found hidden inside 'liquor is enjoyed'.
(Other definitions for risen that I've seen before include "Gone up" , "mounted a rebellion" , "stirred" , "Resin (anag.)" , "Ascended - revolted" .)