Cryptic crossword clue
Jack by bar emptied expensive spirit 6

The most common and most likely answer to this crossword clue is the 6 letter word JINNEE

I've seen this crossword clue in Financial Times
J
I
N
N
E
E

Buddy explains!

The straight part
We know that "spirit" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spirit = jinnee.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does JINNEE mean?

JINNEE noun
  1. (Muslim demonology) A genie and descendant of the jann, normally invisible to the human eye, but who may also appear in animal or human form, equivalent to demons in Jewish demonology.

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