Demanding some coffee (7)

I believe the answer is:

instant

I believe this clue is a double definition.

'demanding' is the first definition.
(thesaurus)

'some coffee' is the second definition.
(instant coffee)

(Other definitions for instant that I've seen before include "Sort of coffee" , "Short time; immediate" , "Immediate, twinkling" , "Fast, flash" , "Tick" .)

I've seen this clue in The Times.

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