Possible Clues:

• Treaty barring nuclear trials puts best explosive in the shade
• *Nuclear treaty subject
• *Nuclear restraint pact
• International agreement ignorant students might favour?
• 'No nukes' agreement
• Quiz Irish woman for a Treaty
• Good man with graduate detained by figure in measure against nuclear weapons
• Grab time to set up international agreement on arms
• Prohibition on trying out atomic bombs
• Treaty to forgo trials of nuclear weapons