Related Clues:

• Grooved whale
• Norwegian whale
• Whale, to Norwegians
• Six, in Italian
• Humpback whale, e.g
• 'Mezza dozzina'
• Tail of diver or another bird, not one that's a big swimmer
• Six, in Sicilia
• Three dues?
• Cinque e uno
• Six, to Italians
• Sicilian six
• Six, in 6-Down
• Tre times due
• 30% of venti