Answer: PLANET

AnswerCrossword Clue
PLANETMars, for one
PLANETSolar system spheroid
PLANETKrypton or Vulcan
PLANETIt goes around annually
PLANETOrrery orb
PLANETPluto, once
PLANETMars or Venus
PLANETMercury or Saturn
PLANETEarth
PLANETEarth, for one
PLANETKrypton, in science fiction
PLANETOrk, for one
PLANETMercury, for one
PLANETKent's daily
PLANETSun orbiter
PLANETVenus or Mars
PLANETSolar orbiter
PLANETSource of energy, in astrology
PLANETSolar-system component
PLANETSolar satellite
planeta celestial body
PLANETRevolver?
PLANETMars, e.g.
PLANETClark Kent's newspaper
PLANETSpace revolver
PLANETStar circler
PLANETRock around a star
PLANETSun looper
PLANETJupiter, but not Zeus
PLANETMork's Ork, e.g.
PLANETEvening star, e.g.
PLANETSaturn, but not Taurus
PLANETVenus, e.g.
PLANETMercury, e.g.
PLANETPluto, for a time
PLANET"The Daily ..." (Lois Lane's employer)
PLANETClark Kent's paper, with "The"
PLANETKrypton or Ork
PLANETMercury or Mars
PLANETSolar-heated orbiter