How many letters does the top answer for “wrote fathers and sons” have?

The most common answer is turgenev (8 letters).

Crossword clue: wrote fathers and sons

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

turgenev 8 letters wd-fact-v3

Russian writer of stories and novels and plays (1818-1883)

author of fathers and sons 50% similar → turgenev

wrote dombey and son 50% similar → dickens

wrote father brown 50% similar → chesterton

wrote father sergius 50% similar → tolstoy

wrote native son 50% similar → busia

wrote sons and lovers 50% similar → lawrence