Possible Clues:

• Old structure shall draw in a revolutionary
• In law, handrails to be fitted for protection across the country
• A British division raised by the Romans
• Northern tourist attraction needs law on handrails reinstated
• Roman fortification in northern England
• Sturdy defence Darwin has rewritten entirely
• A hill drawn as a new or old boundary
• Roman defence against Scots and Picts
• Solid defence, but in all wars had to struggle
• Fortification in Danish war all going wrong