Related Clues:

• Coop denizen
• Get ready (for)
• Setter
• Arrange
• One to brood
• Brooding mother
• It works to have a nest egg
• Chick's mother
• Mother ptarmigan, e.g.
• Layer?
• Clutch producer?
• See 97-Across
• It may be hatched
• Think ahead
• Farm clucker