Possible Clues:

• Nawab
• Not applicable to Geldorf, who's a wealthy person
• Tycoon
• Heavy hitter
• One divining (water)
• Moneybags -- initially not having a shilling
• Rich British merchant in India
• 'Although he was rich, it seems he was worth only a shilling at last (5)'
• Arrest old boy, someone very rich
• Outlaw backed by old bishop becomes a very wealthy man