Travelling requirement in France not fun (8)
I believe the answer is:
passport
'travelling requirement' is the definition.
(passports are required for international travel)
'in france not fun' is the wordplay.
'in france not' becomes 'pas' ('not' in French).
'fun' becomes 'sport' (synonyms).
'pas'+'sport'='PASSPORT'
(Other definitions for passport that I've seen before include "Travel authorisation" , "the key to success?" , "Document to allow entry to another country" , "Document allowing travel abroad" , "Travel doc" .)