The term 'Bishop Topper' refers to a type of headgear worn by bishops in the Catholic Church. The two crossword solutions for this term are MITRE and MITER, both of which are five-letter words. A MITRE is a tall, pointed hat that is typically worn by bishops and other high-ranking clergy members. A miter is a similar type of headgear, but it is more ornate and has a flat top. Both of these items are traditionally made of cloth or velvet and are often decorated with gold or silver embroidery.