Related Clues:

• Bigness exemplar
• Largest animal that ever lived
• Massive mammal
• One in a pod
• One who might create a big splash
• Starbuck's quarry
• Horror director James
• Casino's big customer
• Orca
• Blubber source
• Scrimshaw source
• Monstro or Willy
• 7-Across, e.g.
• Mammal like Moby Dick
• Great sea mammal