How many letters does the top answer for “a tub in which clothes or linens can be washed” have?

The most common answer is washtub (7 letters).

Crossword clue: a tub in which clothes or linens can be washed

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

washtub 7 letters wn-def

a tub in which clothes or linens can be washed

a tub in which clothes are washed. 60% similar → washtub