The most common and most likely answer to this crossword clue is the 14 letter word DISCOURAGEMENT
I've seen this crossword clue in The Times
D
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S
C
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A
G
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M
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More clues leading to the result DISCOURAGEMENT
- Ignore gathering storm, and I will see gloom
- Butcher introduces game for bar?
- Dejection from shoddy gear yours truly gained in cost reduction
- Record how old we are – intended, we hear, as deterrent
- Record how old we are — that’s intended, we hear, to create gloom
- Deduction about anger with me for loss of confidence
Buddy explains!

The straight part
We know that "bar" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bar = discouragement.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 DISCOURAGEMENT mean?
DISCOURAGEMENT noun- The loss of confidence or enthusiasm.
- The act of discouraging.
- Anything that discourages.