The most common and most likely answer to this crossword clue is the 9 letter word NOISELESS
I've seen this crossword clue in Independent
N
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More clues leading to the result NOISELESS
- Sister oddly wound up mute
- Unable to pick up scent, maybe, around beginning of investigation, so quiet
- Lionesses interfered with mum?
- . Is Head of Eton stopping lesson being broadcast still?
- Still one is drunk by bar
- Losing unfurled umbrella, Simon Russell Beale unusually quiet
- Back injury — ending for female’s mum?
- Silent first officer, inept to forget uniform
- Scenting nothing evidently, one kept quiet
- Playful lionesses must be quiet
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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 NOISELESS mean?
NOISELESS adjective- Producing no noise; without noise.