The term 'Suds Producer' can be broken down into two crossword solutions: BREWPUB (7 letters) and SOAP (4 letters). A BREWPUB is a combination of a brewery and a pub, where beer is brewed on-site and served directly to customers. SOAP is a cleansing agent made from fats or oils combined with an alkali, such as sodium hydroxide. Both of these products produce suds when mixed with water, making them both suds producers.