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

The most common answer is olivier (7 letters).

Crossword clue: wrote marathon man

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

olivier 7 letters wd-fact-v3

English actor best know for his Shakespearean roles (1907-1989)

author of marathon man 50% similar → olivier

director of marathon man 50% similar → olivier

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