The most common and most likely answer to this crossword clue is the 6 plus 7 letter word QUAKER MEETING
I've seen this crossword clue in Financial Times
Q
U
A
K
E
R
M
E
E
T
I
N
G
Buddy explains!

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.