Related Clues:

• If you keep your parent, say nothing about it
• Keep her and keep quiet
• Your old one is well preserved
• She'll keep quiet
• Keep her but keep quiet
• Either way, it might be for her to keep quiet
• She gets the chance to hold her tongue
• It's 'the word'
• Not blabbing
• The word, as suggested by the saying formed by the ends of this puzzle's four longest answers
• On the q.t
• Well-preserved parent?
• Relatively speaking, one's kept under wraps
• Not saying anything
• Mother - quiet!