Possible Clues:

• Greek island where Knossos once stood
• It's hard to get the sound of the sea on the island
• Psiloritis is its highest peak
• Hard for C on this island
• Island decided to discharge prisoner
• Modern home of ancient Knossos
• Major island south of Greece
• Minos's land
• Real swindler leaving island
• Vacated Cote-d'Or, and from France headed east to holiday island