Celebrities’ modern vessel for long-distance travel (8)
I believe the answer is:
starship
But I can't explain it at all! Could you help me understand?
(Other definitions for starship that I've seen before include "Intergalactic traveller" , "The Enterprise, commanded by Captain Jean-Luc Picard, was one" , "TV's USS Enterprise, for instance" , "Enterprise perhaps" , "The Enterprise in Star Trek is one" .)