The most common and most likely answer to this crossword clue is the 9 letter word ACOUSTICS
A
C
O
U
S
T
I
C
S
More clues leading to the result ACOUSTICS
- These being good, one may get a hearing
- Characteristic of auditorium requiring sound judgement
- A surprised expression remains in the auditorium, by the sound of it
- Stucco is a puzzle to science
- A loving sound remains reportedly as element in a concert hall?
- We hear a masterstroke lasts for sound science
- CIA scouts about for sound quality
- A top officer’s about to dismiss sound study
- Sound qualities improved at Cisco, US
- University getting into puzzles not right? It’s a sound study!
Buddy explains!

The straight part
We know that "Sound qualities" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sound qualities = acoustics.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 ACOUSTICS mean?
ACOUSTICS noun- The physical quality of a space for conveying sound.
- The science of sounds, teaching their nature, phenomena and laws.