Faced up to coffee having no kick (5)

I believe the answer is:

decaf

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'faced up' is the definition.
(I've seen this in another clue)

I don't understand the rest of the clue.

(Other definitions for decaf that I've seen before include "Less stimulating coffee?" , "Type of coffee" , "Non-alcoholic drink" , "Coffee without the kick?" , "Cup substitute missing kick" .)

I've seen this clue in the Sydney Morning Herald.

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