Possible Clues:

• Dewy-eyed one
• Wide-eyed sort
• Tenderfoot
• Upset supporter outside institute is so na?ve
• Childlike person
• Most of 3 down initially forthright in an overly trusting way
• Madame isn't so artless
• Inexperienced supporter ringing one back
• Simplistic poem introduced by new article
• One who's easily duped