Does the editor has a tentacle or can he use yours?
With the Sync software and a Tentacle attached you can export the synced material als videofiles and import those into Premiere.
You do lose the sound pre and post roll though, although you can always connect it later of course.
There is currently no xml workflow yet for Premiere. Although you can export an xml from FCP7 that Premiere can read i am told. Haven’t tried that yet though.