Related Clues:
- Clorox competitor
- Mr. Clean rival
- Antibacterial brand
- 2013's ISON, for one
- Household antiseptic brand
- Cupid's sleighmate
- Spray brand
- One of Santa's sleigh team
- Hale-Bopp, e.g
- Neutra Air Fabric Mist seller
- Halley's discovery
- Halley's sighting
- Launch attack to repel a potential space invader
- Almost add up to 5, perhaps?
- Firm paid space traveller