Related Clues:

• Presumptive person?
• One who succeeds
• ___ to the throne (prince, e.g.)
• Successor
• Subject of passing concern?
• Beneficiary
• Scion
• Trait carrier
• Kind of pool
• Character builder?
• Son, usually
• It may be dominant
• Prince, e.g.
• One in a receiving line?
• Biological trait carrier