The most common and most likely answer to this crossword clue is the 7 letter word GAMBADO
I've seen this crossword clue in The Guardian
G
A
M
B
A
D
O
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 = gambado.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 GAMBADO mean?
GAMBADO noun- (usually plural) Either of a pair of protective leather gaiters on a saddle.
- (in the plural) gamashes; spatterdashes
- A gambade (leaping movement).
- To perform a gambade (leaping movement).