The most common and most likely answer to this crossword clue is the 3 plus 3 plus 3 letter word THE JET SET
I've seen this crossword clue in The Times
T
H
E
J
E
T
S
E
T
More clues leading to the result THE JET SET
- Article, black, prepared for wealthy people
- Wealthy travellers, alien, descended on by NY gang
- Group of fashionistas that maybe on runway, ready
- Travellers loaded black box below particular article
- At end of flight, he and I in Paris examine returning A-listers?
- Gang in West Side Story film, travelling socialites?
Buddy explains!
The straight part
We know that "wealthy people" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wealthy people = the jet set.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.