Related Clues:

• Not capable of having some of the furniture missing
• Perhaps cannot be without such a bit of furniture
• An important day to have perused the missive, by the sound of it
• An exceptional lack of furniture
• Can't have this in the house, as you well know
• By the sound of it, studied one's correspondence for an important day
• Sounds as if you've read the post of this important day
• It's his hill, I see, that's so famous
• The tune has caught on
• It's to be remembered that there's nothing to sit at here
• 'Can't, perhaps, be known so well (7)'
• No famous end to 18 down
• Tuneful and easily remembered
• Like a memorable tune
• *Memorable, as a day