Related Clues:

• Hem and haw
• Job for a speech coach
• Repeat oneself?
• Barely get the words out
• Stammer a la Porky
• Talk like th-th-this
• Pause cause
• Speech impediment
• Talk incoherently
• Falter
• Sing 'K-K-K-Katy,' say
• Speak haltingly
• Speak uncertainly
• Speak with involuntary pauses
• Sound before 'That's all, folks!'