The most common and most likely answer to this crossword clue is the 3 letter word SKA
I've seen this crossword clue in The Times
S
K
A
More clues leading to the result SKA
- Type of music some kids adore at the outset
- Style of music found in Saskatchewan
- Music genre, origins in sunny Kingston apparently
- Dance music recalled in haikus, oddly
- Music required by ice-skaters
- Special soul music from Jamaica
- Saskatchewan music
- Musical genre Mark heard on radio
- Jamaican music – Kingston’s first to be involved in it
- Ask about Jamaican music
Buddy explains!

The straight part
We know that "Dance music" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dance music = ska.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 SKA mean?
SKA noun- A style of Jamaican dance music combining elements of Caribbean calypso and mento with American jazz and rhythm and blues.