Spanish port wine! (6)
I believe the answer is:
malaga
I believe this clue is a double definition.
'spanish port' is the first definition.
(I've seen this before)
'wine' is the second definition.
(I've seen this before)
(Other definitions for malaga that I've seen before include "Resort in Andalusia" , "Sweet Spanish fortified wine; Picasso birthplace" , "Spanish city port" , "where Spanish sailor lands?" , "City of Andalusia" .)