The most common and most likely answer to this crossword clue is the 10 letter word XYLOPHONES
I've seen this crossword clue in Financial Times
X
Y
L
O
P
H
O
N
E
S
Buddy explains!
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 XYLOPHONES mean?
XYLOPHONES noun- Any musical instrument (percussion idiophone) made of wooden slats graduated so as to make the sounds of the scale when struck with a small drumstick-like mallet; the standard Western concert xylophone or one of its derivatives.
- To play a xylophone or to play something else as though it was a xylophone.
- To move above a ridged surface so as to hit every ridge, in a manner similar to playing quickly and sequentially on a xylophone.