Mean drunk in snug (5)
I believe the answer is:
tight
I believe this is a triple definition!
'mean' is the first definition.
(both can mean miserly)
'drunk' is the second definition.
(slang term)
'in' is a link.
'snug' is the third definition.
(similar in meaning)
(Other definitions for tight that I've seen before include "Closely constrained, constricted" , "Secretive, drunk (colloq.)" , "Taut" , "Unlikely to be choosing the present" , "Hard to move; drunk" .)