The most common and most likely answer to this crossword clue is the 9 letter word BERNSTEIN
I've seen this crossword clue in The Daily Telegraph
B
E
R
N
S
T
E
I
N
More clues leading to the result BERNSTEIN
- Short human entertaining Dadaist composer
- Composer's Swiss mug?
- Stay at home entertaining artist and composer
- Kiki Bertens heartily playing tennis, scoring ace
- Noteworthy personality of British artist and German one
- Swiss location’s extremely tolerable home for composer
- He conducted in Swiss capital, good man, a German
- Composer in Swiss city with beer mug
Buddy explains!
The straight part
We know that "composer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case composer = bernstein.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.