subagent UK US (also sub-agent) /ˌsʌbˈeɪdʒənt/ noun [C] COMMERCE
► someone who provides a service or buys and sells products for an agent (= person who is paid to buy or sell products or provide a service for someone, but who is not a regular employee): »
The broker then forwards the order to a sub-agent.
Financial and business terms. 2012.