Related Clues:

• Jump headfirst
• Fellow abducted by flying saucer outside
• Digs one's own grave going in and out of spring
• Plunge into a pool
• Low-class watering hole
• Squalid place
• Plunge headfirst
• Top expert in water sport?
• Top expert on the crest of a wave?
• Do a jackknife, say
• Act like a loon?
• Uppermost layer
• Place for a first gig
• Type of starter band gig
• Some rockers take a stage one