Possible Clues:

• Hardcover protector
• What the housekeeper wore to work?
• Book protector ... and what 17- 24-, 39-, and 53-Across each has
• Novel protection
• Novel cover canonised ripper in song
• Removable book-cover
• Spine protection
• Book cover
• Novel cover
• Good man getting lift in piece of music -- it's about a book