Possible Clues:

• Elizabeth Taylor role of '63
• Carry on — (1964 film)
• Old African queen, familiarly
• Miss of psychic fame
• Queen of the 14-Across, familiarly
• 1917 role for 30-Down, informally
• Miss ___ (psychic who totally faked that Jamaican accent)
• Lethally poisoned ruler, familiarly
• With 43-Down, jazz singer
• Psychic 'Miss' in late-night 1990s ads