Related Clues:

• Studio head, e.g.
• Nicholas, for one
• Canine classification
• Biz bigwig
• Industry big shot
• Old-time ruler
• Word with baseball or gas
• If it fits, wear it
• Business leader
• Ivan or Peter
• Peter or Paul, but not Mary
• Twist-off, e.g.
• Toothpaste topper
• FAO Schwarz product
• Whirligig, e.g.