How many letters does the top answer for “director of easy rider” have?

The most common answer is fonda (5 letters).

Crossword clue: director of easy rider

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

fonda 5 letters wd-fact-v3

United States film actor (1905-1982)

hopper 6 letters wd-fact-v3

funnel-shaped receptacle; contents pass by gravity into a receptacle below

author of easy rider 50% similar → fonda, hopper

director of ghost rider 50% similar → mendes

director of whale rider 50% similar → caro

wrote easy rider 50% similar → fonda, hopper