Related Clues:

• Prominent location for a title
• Chiropractor’s focus
• Urchin's stinger
• Book title spot
• It's composed of 33 vertebrae
• Hard section of a textbook, perhaps
• Column of vertebrae
• Rapidly turn east, showing guts?
• Criticise president being elevated, showing determination
• Vertebrate feature
• What an invertebrate lacks
• Body part with discs
• Book title location, typically
• Body part that's a metaphor for courage
• Disc holder?