Rich and fashionable travellers (3,3)
I believe the answer is:
jet set
'rich and fashionable travellers' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for jet set that I've seen before include "High fliers" , "Fast-living group" , "These are loaded" , "Rich crowd who fly about a lot" , "High-fliers flying high?" .)