Related Clues:

• Stir
• Command on a submarine
• See 17-Across
• Sensation
• Quite a display
• Plummet
• Jackknife, e.g.
• Go by the board?
• Kind of bar
• Go off the deep end
• Cannonball, e.g.
• Swimming pool sound
• Bit of media hype
• Greasy spoon
• Submarine captain's order