Related Clues:

• In the 20's, say
• Verbalize
• Conversation
• Hype, with 'up'
• Word with duck or turkey
• Not even close
• Speech
• It can precede the starts of 20- and 58-Across and 11- and 29-Down
• Discourse
• Incurable disease
• Say something
• Lecture
• It may be plain or sweet
• Like Antarctica
• How you may know something