Related Clues:

• Twisted lips to speak imperfectly
• Thing is what you can do on stage with such an impediment
• Speech problem in school is problematical
• AI language, high-level -- though is so influenced by having it!
• Malformed sound is evident in recording
• What's produced by part of mouth with end misplaced?
• Impediment getting mouth around sibilant?
• Speech defect getting mouth around sibilant
• Speak imperfectly, in a way
• Hung up on esses
• Turns up, police force releases Pole from last cell - in a manner of speaking, it's not perfect
• Sigmatism
• Speech therapy subject
• Trait of baby talk
• Struggle with assessments?