The crossword solution for the term SPACEY CHIMP is ENOS, which is a four-letter word. ENOS is the name of a chimpanzee who was the first non-human to orbit the Earth in 1961. He was part of the U.S. space program and was launched into space aboard the Mercury-Atlas 5 spacecraft. He completed one orbit around the Earth before returning safely to Earth. He was nicknamed 'Spacey Chimp' due to his pioneering space mission.