Possible Clues:

• -- of America, US state-owned radio broadcaster
• ___ prompt (spoken part of a Hinge profile)
• Read lines for, like a toon
• Choral music part
• Soprano or alto
• Say sloth, say, eats pea, say
• Give every man thine ear, but few thy ... (Polonius in Hamlet)
• Speaker's tool
• Make public what's at the end of 9 down
• Instrument for 62-Across