Two actors both oddly refused a drink (5)

I believe the answer is:

cocoa

'a drink' is the definition.
(cocoa is a kind of drink)

I don't understand the rest of the clue.

(Other definitions for cocoa that I've seen before include "Evening drink taken in rococo amphitheatre" , "Lightish brown colour of a drink" , "Nighttime drink" , "Chocolate ingredient" , "Late-night drink" .)

I've seen this clue in The Times.

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