Related Clues:
- Old marine menace
- It sinks beneath the surface
- (Of a project) cause to sink without trace
- New Yorker's hero
- Partly explode prototype spinning missile
- Something forbidden by the Treaty of Versailles after W.W. I
- Wartime destroyer destroyer
- One sinking beneath the waves?
- Note circling reptile is a threat, in the main
- Submarine potentially about
- Wolf Pack member
- Sea missile in depot or moved
- WWII wolf pack unit
- Wolf pack vessel in W.W. II
- Trooped off to see something exploding