Name that sibling

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Across
  1. 1. The cool guy
  2. 5. The Sister
  3. 8. The Grandmother
  4. 9. Baby girl
  5. 10. The shortest
Down
  1. 2. The singer
  2. 3. Honoree
  3. 4. Call me Aunt
  4. 6. The baby
  5. 7. Mother to all kids