How many letters does the top answer for “a summons; a citation. chaucer.” have?

The most common answer is somonaunce (10 letters).

Crossword clue: a summons; a citation. chaucer.

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

somonaunce 10 letters web-def

A summons; a citation. [Obs.] Chaucer.

somonce 7 letters web-def

A summons; a citation. [Obs.] Chaucer.

to summon; to cite. chaucer. 50% similar → sompne