Agent with even less money (6)
I believe the answer is:
broker
'agent' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for broker that I've seen before include "One acts as an agent for others in buying and selling" , "One buys and sells for others" , "Negotiate with" , "A dealer in stocks and shares" , "Insurance or investment agent" .)