2D RAW MATERIALS IN CAULDRON OF LOWEST VALUE ?O?R?S?
3D HE DOES A DEAL WHEN REVOLUTIONARY PAINTING IS PUT UP ?R?D?R
15D A HUNDRED GOING BANKRUPT AND CEASING TO DO BUSINESS ?L?S?N?
2D Answer is poorest - Cauldron (POT) with raw materials (ORES) in.
3D Anser is Trader - revolutionary (RED) and painting (ART). Read backwards
15D Answer is closing - A hundred (C) followed by going bankrupt (LOSING)