How many letters does the top answer for “wrote war and peace” have?

The most common answer is tolstoy (7 letters).

Crossword clue: wrote war and peace

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

tolstoy 7 letters wd-fact-v3

Russian author remembered for two great novels (1828-1910)

vidor 5 letters wd-fact-v3

wrote on war 67% similar → clausewitz

author of war and peace 50% similar → tolstoy, vidor

wrote casualties of war 50% similar → palma

wrote star wars 50% similar → hamill, lucas

wrote the apotheosis of war 50% similar → vereshchagin

wrote the art of war 50% similar → tzu

wrote the face of war 50% similar → dali

wrote the forever war 50% similar → haldeman