Related Clues:

• Household rival, often
• Sis, to bro
• Certain relation
• One of the kin (Abbr.)
• DNA sharer
• Bro's bro
• Close relation
• Bro, e.g
• Many a recipient of hand-me-downs, informally
• Brother or sister, for short
• Twin or triplet
• 18-Down, for one
• Close relation, informally
• Dakota, to Elle
• Bro, to Sis