The most common and most likely answer to this crossword clue is the 6 letter word CANCAN
I've seen this crossword clue in Independent
C
A
N
C
A
N
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 CANCAN mean?
CANCAN noun- A high-kicking chorus line dance originating in France.
- (motocross) A trick where one leg is brought over the seat, so that both legs are on one side.
- To dance the cancan.