The most common and most likely answer to this crossword clue is the 3 plus 3 letter word JET SET
I've seen this crossword clue in The Times
J
E
T
S
E
T
More clues leading to the result JET SET
- In France, I try to knock back rich people getting about
- Airliner ready for regular travellers
- Across the Channel, I take special exotic trips, primarily with this lot
- In France I raise tax for wealthy crowd
- In French, I will get exam about part of the beau monde
- In Paris I try standing up for the rich
- Wealthy hedonists’ pet rhymes
- Prove earth originally just spun round in circle
- A-listers living the high life?
- Regular users of aeroplane black box
Buddy explains!

The straight part
We know that "regular travellers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case regular travellers = 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.