Related Clues:

• Big boss, informally
• Boss, in Spain
• B.M.O.C., e.g.
• Big shot, initially
• Bigwig, briefly
• Overseer
• Person in charge
• Powerful businessman
• Movie bigwig
• Limo rider
• Fashion's Hugo
• Red-carpet treader
• The big cheese
• Mr. Big, e.g.
• Big suit?