Deity travelling in a bus (6)
I believe the answer is:
anubis
'deity' is the definition.
(Anubis is an example)
'travelling in a bus' is the wordplay.
'travelling' indicates an anagram.
'in'+'a'+'bus'='inabus'
'inabus' is an anagram of 'ANUBIS'.
(Other definitions for anubis that I've seen before include "one Egyptians thought great" , "Is a bun about the ancient Egyptian god of the dead" , "Egyptian jackal-headed god" , "Egyptian god - in a bus (anag)" , "Egyptian deity" .)