How many letters does the top answer for “to emit spawn; to emit, as spawn.” have?

The most common answer is spat (4 letters).

Crossword clue: to emit spawn; to emit, as spawn.

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

spat 4 letters web-def

a young oyster or other bivalve