By Denny Dyroff, Entertainment Editor, The Times Clint Holmes Clint Holmes is a stellar singer with a very impressive resume. Holmes, who will headline a show at Rrazz Room (6426 Lower York Road, New Hope, 888-596-1027, www.TheRrazzRoom.com) on May 5, is more than just a great singer. He is a performer, recording artist and vocalist — one of those rare performers who can legitimately be called...