Related Clues:

• "Mush!" moves it
• *Arctic racer
• Iditarod power source
• Part of an ice pack?
• Iditarod team member
• Iditarod animal
• Iditarod critter
• Best friends perhaps went ahead in polar transport
• Party goers losing heart under supervision? It's a drag
• Tracks guided traveller in frozen North
• Husky follower
• Harry's commanded Arctic transport unit
• Tower over the snow
• Iditarod Trail animal
• Musher puller