Possible Clues:

• 2012 Olympics host
• With first light this city intones 'Danny Boy'
• *With 44-Across, rhyme with a broken span
• Where Warren Zevon's "Werewolves" reside
• 50 and 500, both on in England
• UK Capital city
• One who wrote lines about Greek island for 13 once
• With 8-Across, world's oldest subway system?
• Where an American werewolf appeared in this 1981 film?
• Writer revealing source of this paper