Doorman's drink (6)
I believe the answer is:
porter
This clue is a double definition.
'doorman's' is the first definition.
(synonyms)
'drink' is the second definition.
(porter is a kind of drink)
(Other definitions for porter that I've seen before include "Bag carrier in hotel or railway station" , "Luggage-carrier and dark drink" , "Station worker" , "Stout" , "Baggage-handler" .)