Bag for Falstaff’s wine! (4)
I believe the answer is:
sack
This clue is a double definition.
'bag' is the first definition.
(sack is a kind of bag)
'falstaff's wine' is the second definition.
(Shakespeare's Falstaff drinks sack wine)
'for' acts as a link.
(Other definitions for sack that I've seen before include "Fire the large bag?" , "Destruction" , "Container for coal etc" , "Marching orders?" , "Fire; hessian bag" .)