The most common and most likely answer to this crossword clue is the 9 letter word SPARKLERS
I've seen this crossword clue in The Daily Telegraph
S
P
A
R
K
L
E
R
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 SPARKLERS mean?
SPARKLERS noun- A hand-held firework that emits sparks.
- A gem or ornament that sparkles.
- A vivacious and charismatic person.
- A sparkling wine.
- A tiger beetle.
- One who scatters; especially, one who scatters money; an improvident person.