The most common and most likely answer to this crossword clue is the 10 letter word MIGNONETTE
I've seen this crossword clue in The Times
M
I
G
N
O
N
E
T
T
E
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 MIGNONETTE mean?
MIGNONETTE noun- A plant, Reseda odorata, having greyish-green flowers with orange-coloured stamens, and exhaling a delicious fragrance. In Africa it is a low shrub, but further north it is usually an annual herb.
- A mignonette tree (Lawsonia inermis), source of the dye henna.
- A mignonette vine
- A greyish-green colour, like that of the flowers of the plant.
- Of a greyish-green colour, like that of the flowers of the plant.