Possible Clues:

• Philosopher from Communist bloc (Cambridge graduate)
• Certain razor's inventor
• --'s razor, the principle that entities are not to be multiplied beyond necessity
• William of ___ (man known for his razor)
• Razor manufacturer?
• The language of philosophy?
• William of —, English philosopher
• Razor man?
• Franciscan philosopher who inspired the main character in "The Name of the Rose"
• Name associated with a philosophical 'razor'