The most common and most likely answer to this crossword clue is the 6 plus 6 letter word MIDDLE TEMPLE
I've seen this crossword clue in The Guardian
M
I
D
D
L
E
T
E
M
P
L
E
More clues leading to the result MIDDLE TEMPLE
Buddy explains!
The straight part
We know that "place of barrister" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case place of barrister = middle temple.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.