The most common and most likely answer to this crossword clue is the 6 letter word BOLERO
I've seen this crossword clue in The Guardian
B
O
L
E
R
O
More clues leading to the result BOLERO
- Dance jacket
- Jacket in trunk turned yellow
- Hat wife discarded, plus old jacket
- . Hat won out over jacket
- Short coat for dance in Madrid
- Dance, or eastern ball of sorts, going west
- Expressed approval during relative’s dance
- Show disapproval about unhappy king missing a dance
- Audience disapproval swamps the French conductor’s finale in Ravel piece
- Dance/ /attire
Buddy explains!

The straight part
We know that "Dance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dance = bolero.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 BOLERO mean?
BOLERO noun- A lively Spanish dance in 3/4 time; also an unrelated slower-tempo dance of Cuban origin, in 2/4 time.
- A type of short, buttonless jacket or blouse, open or tied in front and ending at the diaphragm.
- To dance the bolero.