How many letters does the top answer for “wrote dying of the light” have?

The most common answer is martin (6 letters).

Crossword clue: wrote dying of the light

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

martin 6 letters wd-fact-v3

any of various swallows with squarish or slightly forked tail and long pointed wings; migrate around Martinmas

author of dying of the light 50% similar → martin

wrote as i lay dying 50% similar → faulkner

wrote dying inside 50% similar → silverberg

wrote light in august 50% similar → faulkner

wrote lord of light 50% similar → zelazny

wrote the light of asia 50% similar → arnold