How many letters does the top answer for “wrote peter pan” have?

The most common answer is barrie (6 letters).

Crossword clue: wrote peter pan

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

barrie 6 letters wd-fact-v3

Scottish dramatist and novelist; created Peter Pan (1860-1937)

author of peter pan 50% similar → barrie

wrote peter camenzind 50% similar → hesse

wrote peter schlemihl 50% similar → chamisso