The term 'Solar System Circler' refers to a PLANET that orbits the Sun in our Solar System. This PLANET is typically referred to as a 'circular orbiter' because it follows a circular path around the Sun. The crossword solution for this term is PLANET, which has 6 letters. Planets are large bodies of matter that orbit stars, such as our Sun. They are composed of gas, dust, and rock, and they have their own gravitational fields. Our Solar System consists of 8 planets, including Earth, and many other smaller objects such as asteroids and comets.