Related Clues:
- Encrypted, perhaps
- Unlikely to flip over
- Regular girlfriend, in the '50s
- Like an encrypted transmission, in theory
- Sure-handed
- Firmly balanced, not rocking
- Firm or constant
- 'Full cup, ...... hand'
- Stable and balanced
- Stable or regular
- Holds course - ...... as she goes
- Balanced, not shaky
- Changeless, constant
- Free from danger or risk
- Constant, regular