Crossword clue: a teacher or teacher's assistant who demonstrates the principles that are being taught

The most common answer is demonstrator (12 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

demonstrator 12 letters wn-def

a teacher or teacher's assistant who demonstrates the principles that are being taught