full-service brokernoun [ C ]
also full service broker ukusSTOCK MARKET, FINANCE, INSURANCEa broker (= person or company that buys and sells shares, insurance, etc. for others) that provides a wide range of services to its customers, including investment advice:
When dealing in small-company shares, it pays to use a full-service broker that can deal in larger volumes and obtain better prices for you.