The most common and most likely answer to this crossword clue is the 9 letter word OVERTONES
I've seen this crossword clue in The Times
O
V
E
R
T
O
N
E
S
More clues leading to the result OVERTONES
- Visible figures added nuances
- Frank individuals producing subtle innuendoes
- Implicit quality of public units
- Suggestions from open individuals
- Subtle hints from public individuals
- Harmonics could be obvious ones
- ... on time, 11 implications
- Nudists providing subtle hints?
- Implications, obvious ones
- Suggestions for obvious singles
Buddy explains!

The straight part
We know that "added nuances" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case added nuances = overtones.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 OVERTONES mean?
OVERTONES noun- A tone whose frequency is an integer multiple of another; a member of the harmonic series.
- (often in plural) An implicit message (in a film, book, verbal discussion or similar) perceived as overwhelming the explicit message.
- To give an overtone to.