How many letters does the top answer for “fiction philosopher” have?

The most common answer is mahfouz (7 letters).

Crossword clue: fiction philosopher

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

mahfouz 7 letters wd-fact-v3

non-fiction literature philosopher 50% similar → arendt

philosopher philosopher 50% similar → lipps