How many letters does the top answer for “author of ulee's gold” have?

The most common answer is fonda (5 letters).

Crossword clue: author of ulee's gold

1 answer 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)

author of the gold-bug 50% similar → poe

director of ulee's gold 50% similar → fonda

wrote ulee's gold 50% similar → fonda