The most common and most likely answer to this crossword clue is the 5 letter word MUTED
I've seen this crossword clue in Independent
M
U
T
E
D
More clues leading to the result MUTED
- Quiet note to stop vilification
- Subdued Greek character and rock ‘n’ roll fan
- Dirt around middle of step becomes softened
- Quiet time, briefly, before playing duet
- Stifled, dropping dead
- Contrary corporation has media chief silenced
- Kept quiet when bad name included the heartless
- Toned down letter to Telegraph’s head editor
- Quiet man pursues tailless dog
- The heartless abuse goes round – it must be suppressed
Buddy explains!

The straight part
We know that "Quiet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case quiet = muted.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 MUTED mean?
MUTED verb- To silence, to make quiet.
- To turn off the sound of.
- Of a bird: to defecate.
- To cast off; to moult.
- Not expressed strongly or openly.
- (of a sound) Quiet or soft.
- (of color) Subdued.