How many letters does the top answer for “author of star wars” have?

The most common answer is hamill (6 letters).

Crossword clue: author of star wars

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

hamill 6 letters wd-fact-v3

lucas 5 letters wd-fact-v3

United States screenwriter and filmmaker (born in 1944)

author of on war 67% similar → clausewitz

author of a star is born 50% similar → streisand

author of casualties of war 50% similar → palma

author of double star 50% similar → heinlein

author of star maker 50% similar → stapledon

author of star trek 50% similar → roddenberry

author of the apotheosis of war 50% similar → vereshchagin

author of the art of war 50% similar → tzu