Possible Clues:

• 'Don't ___ stranger'
• Arthur or Lillie, e.g.
• '-- pal!'
• Arthur of ''Maude''
• Maude portrayer
• One of Estelle's co-stars
• '-- sport!'
• ''Who Wants to ___ Millionaire'' (2 words)
• 'Don't ___ stranger!'
• Co-star with Betty, Rue and Estelle