Possible Clues:

• Fail to be troubled in rescue situation
• Rescue vessel at sea
• I bet loaf on maritime rescue vessel
• Raise captured eastern snake using this after abandonment
• Item in short supply on the Titanic
• Titanic aid
• Ballantyne's rescuer – albeit of new design
• At sea, if able to, this saves people
• Spooner's by float needed if ship sinks
• Bite loaf floating from rescue craft