Answer: ROVER

AnswerCrossword Clue
ROVERGeneric pooch
ROVERMartian explorer
ROVEROne on the move
ROVER"Red" one in a classic playground game
ROVERVagabond
ROVERSpot's friend
ROVERMan on the move
ROVERBowser's buddy
ROVERRolling stone
ROVERMars explorer
ROVERWandering one
ROVERCommon dog's name
ROVERSpacecraft on Mars
ROVERFootloose one
ROVERLand ..
ROVERNASA robotic vehicle
ROVERPopular dog's name
ROVERPal of Fido
ROVERBrother of Snoopy
ROVERPlaymate of Spot
roveroperator of such a machine
ROVERStereotypical dog name
ROVERGeneric dog name
ROVERA.k.a. Fido
ROVERExplorer on Mars
ROVERMachine on Mars
ROVERWord after Mars or red
ROVERGadabout
ROVERMedieval minstrel, often
ROVERMoon vehicle
ROVERFriend of Fido
ROVERFamiliar dog's name
ROVERWanderer
ROVERFriend of Rex
ROVERRootless sort
ROVERFido's friend
ROVERGeneric pooch name
ROVERWord on a doghouse
ROVERNomad
ROVERLunar ... (Apollo 15 vehicle)