Related Clues:

• Where there's no charge for one turn?
• Particle produces trigger initially in nerve cell
• One in rut possibly: it's very small and difficult to detect
• Turn one (anag) - kind of bomb
• Uncharged particle in a nucleus
• Uncharged subatomic particle
• Particle that decays when released
• Subatomic particle, now said to travel faster than light
• Bit in an atom
• Pointer Sisters "Dance"
• Bit of an atom
• Subatomic particle, said to travel faster than light
• It's not charged
• Rumour of recent threesome — name's taken but one's not charged
• One Turin game that's free of charge