Related Clues:

• Philly's signature sandwich
• Watership down?
• Captain Nemo's workplace
• Beneath on bus
• Submarine missile
• Prefix meaning below
• Submersible warship
• Explosive missile from submarine
• Briefly, membership fee or stand-in
• Missile form a submarine
• Missile from submarine
• Prefix meaning beneath
• Trooped off with underwater missile
• Prefix meaning under or below
• Explosive underwater projectile