The most common and most likely answer to this crossword clue is the 9 letter word TRAPPINGS
I've seen this crossword clue in The Daily Telegraph
T
R
A
P
P
I
N
G
S
More clues leading to the result TRAPPINGS
- Stuff offered by singing family in G&S
- Accessories worn with kind of shirt — striking on first sight
- Split up police seizing new office equipment
- ‘Singing’ covered in empty tasteless bling
- Beefy sends son to the back for accessories
- Clothes stoutly made, top to toe
- Accessories that are robust start to finish
- Clothes sturdily made, head to tail
- Ornamentations are very soft in coach goods emptied out
- Beefy sending son to back for accoutrements
Buddy explains!

The straight part
We know that "accoutrements" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case accoutrements = trappings.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 TRAPPINGS mean?
TRAPPINGS noun- Clothing or equipment; that which gives the appearance of something.
- Ornamental coverings or harnesses for a horse; caparisons.
- An instance of ensnaring something or someone.
- An ornamental covering or harness for a horse; caparison.