Possible Clues:

• Children's verse
• Traditional children's verse
• Verse for children
• Child's verse
• Jack and Jill produced space for little ones heard in Limerick
• Night lines of help to those with baby-sitting problems?
• Bursary, we hear, for Little Jack Horner? (7,5) {7,4}
• Old King Cole's bursary?
• Simple work cursory, for example?
• Lavender's blue, say, where it's protected against frost, say