How many letters does the top answer for “the act of sprinkling. chapman.” have?

The most common answer is inspersion (10 letters).

Crossword clue: the act of sprinkling. chapman.

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

inspersion 10 letters web-def

The act of sprinkling. [Obs.] Chapman.

the act of sprinkling anything; a sprinkling over. 50% similar → besprinkling

the act of sprinkling or scattering. 50% similar → respersion

the act of sprinkling. swift. 50% similar → spargefaction