How many letters does the top answer for “ware, or articles collectively, made of glass.” have?

The most common answer is glassware (9 letters).

Crossword clue: ware, or articles collectively, made of glass.

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

glassware 9 letters web-def

an article of tableware made of glass

an article of tableware made of glass 50% similar → glassware, glasswork