Possible Clues:

• Deserter, say, beneath a river
• Renegade given a job at end of debate
• Person losing faith in a job turned to food?
• Turncoat given a job at head of enterprise
• One loses faith when a male part's not right ...
• A job destroyed renegade
• Nonbeliever, now
• Person who deserts their religion
• One who's lost faith in a petty officer, say
• One who has abandoned their religion