Work over travelling round EU (6)
I believe the answer is:
oeuvre
'work' is the definition.
(an oeuvre is someone's collected works)
'over travelling round eu' is the wordplay.
'travelling' indicates anagramming the letters.
'round' means one lot of letters goes inside another.
'over' anagrammed gives 'ovre'.
'ovre' placed around 'eu' is 'OEUVRE'.
(Other definitions for oeuvre that I've seen before include "(A composer's) works" , "Body of work of an artist (6)" , "Artist's total output" , "Substantial body of work from our Eve" , "All the works of a particular composer" .)