Disgraced Elmo puppeteer Kevin Clash is in a ticklish situation. Clash is accused of stringing along Citibank for $100,000 on his corporate credit card, according to a lawsuit. Citibank extended Clash a line of credit of up to $150,000 in September 2011, but the 59-year-old “Sesame Street” veteran defaulted under the terms of the account...