The most common and most likely answer to this crossword clue is the 7 letter word BREWPUB
B
R
E
W
P
U
B
More clues leading to the result BREWPUB
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 = brewpub.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 BREWPUB mean?
BREWPUB noun- A public house with a brewery (usually a microbrewery) attached.