Possible Clues:

• Literally, 'great prince'
• Fitzgerald's ultimate Shogun
• A business magnate or wealthy industrialist
• Yes, business swallowed up by heavyweight magnate
• One very wealthy youth's heading company involved in fashion
• Wealthy or powerful business person
• Magnate not coy, by any means
• Extremely tricky one mostly controlling company?
• Rich businessperson
• Coy? Not fantastic word to describe Lord Sugar