The most common and most likely answer to this crossword clue is the 9 letter word CHASSEURS
I've seen this crossword clue in The Times
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Buddy explains!
The straight part
We know that "Attendants" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case attendants = chasseurs.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 CHASSEURS mean?
CHASSEURS noun- A soldier equipped for rapid movement; also, any of several light infantry regiments, especially in France.
- A servant or attendant.
- A hotel messenger, especially in France.
- A hunter or huntsman.
- A dish of meat cooked in a sauce containing mushrooms, shallots and white wine.