Possible Clues:

• One Redgrave
• Loretta played by 56-Across
• Most awarded female country singer
• ''First Lady of Country Music''
• Loretta with the #1 country hit 'Coal Miner's Daughter'
• Singer Cheryl
• '24' actress Mary ___ Rajskub
• 'Saving Face' actress Chen
• "Fist City" singer Loretta
• 'Sweat' playwright Nottage