Related Clues:
- Moral obligation
- Huey, Dewey or Louie, notably
- Relative
- Lot, to Abraham
- George Clooney, to Rosemary
- Kinsman
- Be advised (to)
- Family tree entry
- ''There ___ to be a law!''
- "You ___ to Be in Pictures" (1940 Porky Pig short)
- Napoleon III, to Napoleon I
- Certain heir
- Huey, Dewey or Louie
- Sibling's son
- Something or nothing