Possible Clues:

• "Sanford and Son" producer
• Earl may be mistaken for king
• Edward made a nonsense of the playful king
• Big jet name
• He was royally mad with three daughters and at fifty, near-decapitated
• Nearly come to understand writer of nonsense
• Business jet company founder
• Shakespearean king who partly inspired Kurosawa's 'Ran'
• Jet or set name
• King with the immortal line 'Who is it that can tell me who I am?'