Crossword Genius

Officer twice has a drink (5)

Ross

I believe the answer is:

cocoa

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

'officer twice has a' is the wordplay.
'officer' becomes 'co' (Commanding Officer abbreviation).
'twice' indicates the doubling of some letters.
'has' means one lot of letters go next to another.
'co' doubled is 'coco'.
'coco'+'a'='COCOA'

(Other definitions for cocoa that I've seen before include "Bean used in making chocolate" , "Chocolate ingredient" , "Drinking chocolate" , "Hot beverage" , "Lightish brown colour of a drink" .)

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