A clerical gathering is often referred to as a convocation, symposium, or conference.
A square clerical cap is called a biretta. This traditional headgear is commonly worn by clergy members, particularly in the Catholic Church, to signify their rank or office.
A gathering of nuns is called a nunnery. Or a convent.
A large gathering of people is called a group, mob, crowd or a mass.
A clerical robe is commonly referred to as a cassock or a soutane. It is a long, ankle-length robe worn by clergy members, particularly in the Catholic and Anglican traditions.
A nifty website called monster.com will let you search for administrative and clerical jobs, and by area as well. That should get you on your way. Good luck!
prunella
It is called a levee!
A male vicar's neck scarf is typically called a clerical collar or an Anglican collar. This garment is a white piece of fabric worn around the neck in a band or tabular shape as part of clerical attire.
A gathering
Tango
punnet
It is a Tribe.