How many letters does the top answer for “director of drunken master” have?

The most common answer is chan (4 letters).

Crossword clue: director of drunken master

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

chan 4 letters wd-fact-v3

director of drunken angel 50% similar → mifune

director of the young master 50% similar → chan