Meat trade using one percent of its capital (4)
I believe the answer is:
veal
'meat' is the definition.
(veal is a kind of meat)
I don't understand how the rest of the clue works.
(Other definitions for veal that I've seen before include "what the meat course may be" , "cuisine" , "Type of meat" , "White meat" , "Calf's flesh as food" .)