Large chemical container

VAT

Think of a big open-topped vessel often used in brewing or dyeing processes, especially in industrial settings.

"Large chemical container" points to "VAT" because a vat is a big tub or tank often used in industrial or chemical processes to hold liquids. The word is straightforward here—no wordplay or hidden meanings—just a direct definition. You might picture a brewery’s fermentation vat or a dyeing vat in a factory, which fits the clue perfectly.