As drunk for courage? (6)

I believe the answer is:

spirit

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'for courage?' is the definition.
(courage is a kind of spirit)

I cannot understand how the rest of the clue works.

(Other definitions for spirit that I've seen before include "Life-giving force" , "Ghost or animation" , "Gusto" , "Brandy" , "Phantom, ghost" .)

I've seen this clue in the Evening Standard.

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