The job description is to 'FEED' someone. The crossword solutions for the term 'supply supper to' are four letters long and include the words 'DINE, ' 'FEED, ' 'NOURISH, ' and 'TREAT.' These words all refer to providing food to someone, which is the task at hand. DINE means to eat a meal, FEED means to give food to someone, NOURISH means to provide sustenance, and TREAT means to provide something special. All of these words can be used to describe the act of supplying supper to someone.