Possible Clues:

• Route north cutting No. 5?
• Couturiere entertained musician, finally in the groove
• A TV watcher may change it
• Narrow sea
• Length of water between two land masses
• The scent around the North may be at the south of England
• Strait, (data) path
• Sounds as if it's sent around the North to cross to France
• The sound that will make you cross between the French and the English
• See 11