The most common and most likely answer to this crossword clue is the 9 letter word ASYMMETRY
I've seen this crossword clue in The Guardian
A
S
Y
M
M
E
T
R
Y
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 ASYMMETRY mean?
ASYMMETRY noun- Absence of symmetry or proportion between the parts of a thing, or a distinction that produces such a lack of symmetry.
- The lack of a common measure between two objects or quantities; incommensurability.