Possible Clues:

• Baby wears one when eating
• Baby's food-spill catcher
• Baby's garment
• Tot's dinnertime neckwear
• The sort of cock that's there to catch the dribble
• Palindromic protective cloth for child while eating
• Baby's mealtime need
• Catcher of a sort
• Hace it round your neck, Les, for the best of books
• Protective apron