How many letters does the top answer for “wrote tree and leaf” have?

The most common answer is tolkien (7 letters).

Crossword clue: wrote tree and leaf

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

tolkien 7 letters wd-fact-v3

British philologist and writer of fantasies (born in South Africa) (1892-1973)

author of tree and leaf 50% similar → tolkien

wrote the baron in the trees 50% similar → calvino

wrote the last leaf 50% similar → henry