How many letters does the top answer for “a short stout club used primarily by policemen” have?

The most common answer is nightstick (10 letters).

Crossword clue: a short stout club used primarily by policemen

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

nightstick 10 letters wn-def

a short stout club used primarily by policemen

truncheon 9 letters wn-def

a short stout club used primarily by policemen