Suesstastic puzzler

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Across
  1. 1. the Oneseler's invention that everyone needs
  2. 3. the color of eggs and ham
  3. 5. The cat's special machine
  4. 6. protector of the forest
Down
  1. 2. The elephant who hears a who
  2. 4. the animal in the hat
  3. 5. Dr. Seuss's real first name