Steal away to have a drink (6)
I believe the answer is:
spirit
'drink' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for spirit that I've seen before include "Vital force - apparition" , "Courage, energy" , "Mettle" , "Incorporeal supernatural being" , "A shade" .)