The crossword solution for the term 'HAPPY BIRTHDAY! AUTHOR' is ICER. ICER is an acronym for the International Cake Exploration Societe, which is a global organization of cake enthusiasts and professionals. Founded in 2004, ICER's mission is to promote the art and science of cake decorating and to provide educational opportunities for its members. The organization also works to recognize and celebrate the achievements of cake artists and authors.