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

The most common answer is asimov (6 letters).

Crossword clue: wrote the bicentennial man

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

asimov 6 letters wd-fact-v3

United States writer (born in Russia) noted for his science fiction (1920-1992)

author of the bicentennial man 50% similar → asimov

wrote a man of the people 50% similar → achebe

wrote amphibian man 50% similar → belyayev

wrote dead man 50% similar → jarmusch

wrote delivery man 50% similar → vaughn

wrote fate of a man 50% similar → sholokhov

wrote if this is a man 50% similar → levi

wrote invisible man 50% similar → ellison