The most common and most likely answer to this crossword clue is the 8 letter word SQUABBLE
I've seen this crossword clue in Financial Times
S
Q
U
A
B
B
L
E
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.
What does SQUABBLE mean?
SQUABBLE noun- A minor fight or argument.
- To participate in a minor fight or argument.
- To disarrange, so that the letters or lines stand awry and require readjustment.