Possible Clues:

• What one of 11 across or 31 across might do over the French
• Spouseless
• Two such in Le CarrŽ book, possibly allowed by one 12 at 4
• Not one of several
• Evil and good - the French are undivided
• Is one 7 downing?
• The gin in Les is only a small one
• One would miss sucha girl to be the French vocalist, perhaps
• One might do this with the French song
• You get no return from one like this