Possible Clues:

• Conquistador has not succeeded getting surgeon aboard vessel
• Surgeon cut into outer layer of organ, removing unknown small vessel
• Warship
• Entering central part, monitor temperature in vessel
• Escort vessel � check last of ballast in centre
• Car in a Prince song
• Sporty Chevy
• Old campaigner, note, following my naval vessel
• Brother briefly security-checked in ship
• Stingray or Shark