Coffee and port (5)
I believe the answer is:
mocha
I believe this clue is a double definition.
'coffee' is the first definition.
(type of coffee drink)
'port' is the second definition.
(I've seen this before)
'and' acts as a link.
(Other definitions for mocha that I've seen before include "Kid" , "Fine-quality coffee" , "Coffee flavour" , "Dark brown" , "Kind of coffee" .)