In from France, joke with editor, busy (7)
I believe the answer is:
engaged
'busy' is the definition.
(similar in meaning)
'in from france joke with editor' is the wordplay.
'in from france' becomes 'en' (I've seen this in other clues).
'joke' becomes 'gag' (gagging is a kind of joking).
'with' is a charade indicator (letters next to each other).
'editor' becomes 'ed'.
'en'+'gag'+'ed'='ENGAGED'
(Other definitions for engaged that I've seen before include "Started fighting" , "Affianced" , "looking forward to the match?" , "Given a ring" , "Held" .)