Related Clues:

• Lisa Simpson, to Bart
• Household nickname
• Sibling, in brief
• Cheer starter
• Household name
• Spanish ayes
• Foreign agreements
• Marcia, to Greg
• A sib
• Serena, to Venus
• Bro's sib
• Family nickname
• Bounty rival
• Affectionate family name
• Cheer opener