How many letters does the top answer for “wrote the old man and the sea” have?

The most common answer is hemingway (9 letters).

Crossword clue: wrote the old man and the sea

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

hemingway 9 letters wd-fact-v3

an American writer of fiction who won the Nobel prize for literature in 1954 (1899-1961)

author of the old man and the sea 60% similar → hemingway

director of the old man and the sea 60% similar → sturges

wrote the sea, the sea 50% similar → murdoch