Related Clues:

• Trooped off with undersea missile
• Missile fired from underwater submarine
• Prefix meaning under or lower
• Machine tool to remove jagged edges
• Prefix meaning under or inferior
• Prefix denoting under
• Explosive underwater weapon
• Underwater explosive device
• Prefix for under
• This attack is enough to make 17 down sick
• When transport overturns, this may have one under it
• One gives ground
• It could be fatal for the pet to get involved with the door in 21 down
• What is there to do do about the rep that's so explosive? (7)
• How a poet with a rod might give one that sinking feeling