Porter's drink? (5)

I believe the answer is:

stout

I believe this clue is a double definition.

'porter's' is the first definition.
(porter can mean stout)

'drink?' is the second definition.
(type of beer)

(Other definitions for stout that I've seen before include "Robust; drink" , "Rather fat, stocky" , "Dark beer for the rather fat" , "Fat; dependable" , "Portly or stalwart" .)

I've seen this clue in the Evening Standard.

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