Related Clues:

• Give birth (of whales or cows)
• Release an iceberg, as a glacier
• Give birth to a young bovine
• Left in chamber to produce young whales
• Give birth, as whales do
• Drop a little lower, keeping length in mind
• Of ice, to become a berg
• Shed an iceberg
• Produce new animal and slice it up, say
• Give birth, in a barnyard
• Deliver new stock of local vegetables
• Break off, as a glacier chunk
• How cows give birth
• Ignore a ''Simpsons'' suggestion
• Give birth, as a cow