Although I have never heard the term "parish apprentice", I would assume that it would refer to a curate: a just ordained priest who is assigned under a pastor to "apprentice".
The apprentice is called Dave Stutler, the sorcerer is called Balthazar Blake, the villain is called Maxim Horvath, and the villain's apprentice is called Drake Stone.
The 7th Last Apprentice book is called Rise of the Huntress.
The book is called the fourth apprentice, the series is called omen of the stars
A butcher's apprentice is typically called a "butcher's assistant" or simply an "apprentice butcher." They work alongside experienced butchers to learn the skills and techniques of the trade.
A Jedi apprentice is called a padawan.
He is called a carpenters apprentice.
apprentice
That would be an apprentice.
Quite simply, he is called a priest.
The Parish Priest
I think what you are asking about is called a masterpiece. It was not actually submitted by an apprentice, but by a journeyman, who had previously been an apprentice.