The term 'HEADY SIP' can be solved by the crossword solution 'ELIXIR', which is a six letter word. An ELIXIR is a sweetened, aromatic solution of alcohol and water that is used for medicinal purposes. It is often used to treat various ailments, such as headaches, colds, and digestive problems. In addition, elixirs are sometimes used as a form of recreational beverage, as they can have a pleasant taste and provide a feeling of relaxation.