How many letters does the top answer for “any of 16 white and 16 black pieces used in playing the game of chess” have?

The most common answer is chessman (8 letters).

Crossword clue: any of 16 white and 16 black pieces used in playing the game of chess

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

chessman 8 letters wn-def

any of 16 white and 16 black pieces used in playing the game of chess

a piece used in the game of chess. 50% similar → chessman