Step through the pub door and head for the bar in time for the Irish dancers at 2 p.m. on St. Patrick’s Day. “One bangers and mash and a Hell Cat Maggie Irish beer.” Or maybe an Aberlour, one of the 130 whiskeys available in the expanded whiskey bar, followed by the beef and Guinness stew. O’Sullivans Irish Pub is a family owned and operated business founded in the heart of Clarendon in 2006. In 2013, it doubled in size and added a whiskey bar.