Related Clues:
- Secret departure (by moonlight?)
- Zip around
- Missile name
- Move like a monarch
- Gulf War missile
- Emulate certain clouds
- Sail along, as clouds
- (E.g. cloud) race along
- Flutter; run off
- Missile race
- (Cloud) race along
- At sea - run before a gale
- Skim along; Russian missile
- Russian ballistic missile
- Move lightly