- - Proverb espousing the virtue of staying quiet, and a hint to a word spelled out by six letters in this puzzle
- - Proverb for overwrought parents, and a hint to both ends of 17-, 23-, 47- and 56-Across
- - Maxim for the mum
- - Admonition to a noisy child
- - A proverb that contradicts 17- and 34-Across
- - Maxim violated by a stool pigeon
- - Adage for a dumb blonde?
- - Adage for a librarian
- - Mob's maxim
- - The Four Seasons, 1964
- - Mum's best lesson, diligence is wasted
- - "The less said the better"
- - Better not talk in lesson prepared with diligence
- - Frolicking inside college in outskirts of Swindon? Best say nothing
- - Peace — or the equivalent
- - What good listeners know, lesson that's gone over with diligence
- - No. 1 hit for the Tremeloes in 1967
- - Librarian's line, perhaps
- - Apt adage for this puzzle
- - "Shhhh!" prompter
- - Librarian's line, maybe
- - Library motto?
- - Librarian's motto, perhaps
- - Librarian's credo?
- - The squeaky wheel gets the grease, but also...
- - Title for M. Marceau's memoirs?
- - "Quiet!" . . . at finishing school
- - Polite words for shut up
- - Cogent motto.
- - 'Mum's the word'
- - 'Zip your lip!'
- [ Edit ]
- [ Other definitions ]