A person who works at a sales counter or service desk, as at a store or hotel. A person who works in an office performing such tasks as keeping records, attending to correspondence, or filing. A person who keeps the records and performs the regular business of a court, legislative body, or municipal district. Law A law clerk, as for a judge. A cleric. Archaic A scholar. To work or serve as a clerk: clerked in a store; clerks for a judge.