The most common and most likely answer to this crossword clue is the 9 letter word BLUEGRASS
I've seen this crossword clue in The Daily Telegraph
B
L
U
E
G
R
A
S
S
More clues leading to the result BLUEGRASS
- Musical style it's rude to sing
- Country music to sing, get down on it!
- Adult joint's style of music
- Left university, say, to get into money making music
- Country music from sad dope
- Type of music depressed one singing
- Downbeat artist’s gripped by good southern country music
- Bass sound of Lou Reed’s music
- Unhappy shop music?
- Country music is sad, one can tell
Buddy explains!
The straight part
We know that "Type of music" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case type of music = bluegrass.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 BLUEGRASS mean?
BLUEGRASS noun- Kentucky bluegrass, Poa pratensis.
- A style of country music with roots in Scots-Irish Appalachian folk music, blues, and jazz and characterized by banjos, fiddles, acoustic guitars, dobros, and mandolins; but containing no drums, electric guitars, pianos or other keyboard or wind instruments.