Possible Clues:

• Get the sniffles
• Contract a common malady
• What fishermen do about onset of legal contract complaint
• Become ill with the sniffles
• Get sick of fish that's raw in a wintery setting
• Suffer financial loss — i.e. to do this to get diamonds?
• Do more than get the sniffles
• Get sick of 2 down, perhaps
• Acquire common ailment of sneezing and coughing
• Get Achill?