Answer:

pluto

AnswerCrossword Clue
PLUTODisney dog
PLUTOMickey Mouse's dog
PLUTODisney character
PLUTOSmall icy world
PLUTODemoted rock
PLUTO2006 solar-system demotee
PLUTODisney canine
PLUTO1930 astronomical discovery
PLUTOCharon is its only moon
PLUTODisney pooch
PLUTOMickey's dog
PLUTODemoted dwarf planet
PLUTONotable reclassification of 8-24-2006
PLUTOToon mutt
PLUTOCharon is its largest moon
PLUTOIt was reclassified in 2006
PLUTODemoted planet
PLUTOReclassified planet
PLUTO1930 Clyde Tombaugh discovery
PLUTOReclassification of 2006
PLUTOUnderworld figure
PLUTOOutermost planet, some of the time
PLUTO... Platter (Frisbee, once)
PLUTOCharon's planet
PLUTOIts year is 248.53 times longer than Earth's
PLUTOUnderworld god
PLUTONinth rock from the sun
PLUTO1930 discovery
PLUTODisney mutt from hell?
PLUTOIts planethood was revoked in 2006
PLUTORecently demoted planet
PLUTO"Demoted" object in the solar system
PLUTOPlanetary outcast
PLUTOMickey Mouse's pet pooch
PLUTOA planet, once
PLUTOPlanet demoted in 2006
PLUTOPlanet discovered in 1930
PLUTOMickey's mutt
PLUTOIt was demoted in 2006
PLUTOBeyond Neptune