How many letters does the top answer for “wrote the professor” have?

The most common answer is bronte (6 letters).

Crossword clue: wrote the professor

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

bronte 6 letters wd-fact-v3

English novelist; oldest of three Bronte sisters (1816-1855)

wrote professor unrat 67% similar → mann

wrote 1q84 50% similar → murakami

wrote 2666 50% similar → bolano

wrote 4 3 2 1 50% similar → auster

wrote professor dowell's head 50% similar → belyayev

wrote q11368 50% similar → kernighan, ritchie

wrote q13415681 50% similar → hamill

wrote q134773 50% similar → zemeckis