Vintage port or whiskey? (3)
I believe the answer is:
rye
This clue is a double definition.
'vintage port' is the first definition.
(the English town Rye was once a port)
'whiskey?' is the second definition.
(rye whiskey is a type of whiskey)
'or' is the link.
(Other definitions for rye that I've seen before include "Whisky; Sussex town" , "Whiskey (US)" , "Burns's body came through" , "Type of grass" , "Whiskey ingredient" .)