Related Clues:

• River features
• Switchback features
• Surfacing diver's concern, with "the"
• Gives a little
• Decompression disorder
• Diving woe
• Relaxes, as rules
• Diver's ailment
• Compromises
• Diver's worry
• Makes a concession
• Concern when coming up, with 'the'
• See 14
• Decompression sickness
• Buckles deadly to the diver