Possible Clues:

• How one might encourage him to go in for egg production, but not in church
• Song by Head of Music, an amateur practitioner
• He is a non-professional or a non-cleric
• One without professional knowledge
• Untrained person writing short poem on staff
• Non-cleric
• 'I'm not a priest', priest admits yes and no
• He's not clergy or army
• Person without specialised knowledge of subject
• Not an expert