Possible Clues:

• That may get you in the box in church
• Parson's signal gets deserter arrested
• Dirty dog dined courtesy of minister?
• 18 down, in short, may get to be unusually poisonous
• With the help of the Church the brute swallowed this
• Is the good man what the brute swallowed?
• Seems that in church he had his 7 down, the rotter
• Junior church minister
• In church he might get you in a packing-case
• Turn box round for clergyman