Possible Clues:

• Tinny? That's shrewd
• Shrewd like Scotsman
• Is he able to sound so shrewd and Scottish
• Awfully clever
• Shrewd, knowing
• Shrewd woman replacing it in city
• Shrewd and clever
• Cute girl in Cyprus
• Is a Scot cute enough to be able to get to New York initially?
• Knowing Nancy tickled