Possible Clues:

• Actress ___ Michelle Gellar
• Duchess of York's name
• England's Fergie, formally
• With 118-Across, debater with Joe Biden
• Piper Palin's mother
• Funnywoman Silverman
• Singer/songwriter McLachlan
• Mother of Track, Bristol, Willow, Piper and Trig
• She finds much harassment upsetting
• A rash plan I crazily formulated, as leader of 21