Find courage in drink (6)

I believe the answer is:

bottle

'find courage' is the definition.
'bottle' can be an answer for 'courage' (I've seen this before). I am not certain of the 'find' bit.

I can't explain the rest of the clue.

(Other definitions for bottle that I've seen before include "Preserve" , "Nebuchadnezzar?" , "Grit" , "intrepidity?" , "beer found in this?" .)

I've seen this clue in The Guardian.

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