The crossword solutions for the term PROBLEM PRIMA DONNA are EGO, which stands for an exaggerated sense of self-importance. A prima donna is a person who is overly demanding and difficult to work with due to their inflated sense of self-importance. The term is derived from Italian opera, where it was used to describe the lead female singer who was often temperamental and difficult to work with. In modern usage, the term is used to describe anyone who is excessively demanding and difficult to work with.