Related Clues:

• Baron of business
• Policy chief
• Captain of industry
• Russian monarch
• Ruler of yore
• Head boss
• Peter the Great, for one
• A sitter employs one
• Energy ___
• Lead a discussion
• Nicholas II, for one
• 4-Down, e.g.
• Head up
• Run, as a meeting
• Industrial mogul, e.g.