Exploitative profit-maker beside a horse-drawn carriage (4)
I believe the answer is:
arba
'carriage' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for arba that I've seen before include "Rudimentary carriage" , "Wagon" , "Asian carriage" , "carriage from Asia" .)