Related Clues:
- Prefix before sphere
- Half up front?
- Prefix for 'half'
- Spherical start
- Pub torpor (anag) - type of aircraft
- Half: Pref
- Spheric opener?
- Engine supercharger, for short
- ___ engine
- Supercharged engine, for short
- Prefix for demisemiquaver, in music
- Half, to start with
- Extra-powerful engine
- Powerful car engine
- Lead-in to fan or jet