Possible Clues:

• Sing 'K-K-K-Katy,' say
• A saint would hesitate to say it with this
• Speech defect in repeating first consonants of words
• Thus might the saint speak, but with difficulty
• The way to speak? Not the best way
• The saint can speak only with difficulty
• Whatever the saint may say, he has difficulty expressing it with this (7)
• Experience initial difficulty in speech-making
• A way to speak, despite oral impediment
• Hesitate, in a manner of speaking