The crossword solution for the term WORKS BEHIND, AS A BAR is 'TENDS'. A bartender, also known as a barkeep, barman, barmaid, bar chef, tapster, mixologist, alcohol server, or a alcohol chef, is a person who serves alcoholic beverages behind a bar, usually in a licensed establishment. Bartenders also usually maintain the supplies and inventory for the bar. They check customers' identification and confirm it meets the legal drinking age. Bartenders also prepare and serve a variety of drinks and cocktails.