Possible Clues:

• Fifty-one, competent and responsible
• Likely – to be responsible
• Prone (to)
• Responsible story covers sailor on one side of Lusitania
• Turns up, the Spanish get out of jail system is responsible
• Turns up, the foreign security is responsible
• First person splitting dress label is legally responsible
• Likely experimental area blocked by one French article
• Inclined (to)
• Likely story about murder victim (no evidence at first)