Buying and selling (5)
'buying and selling' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for trade that I've seen before include "Buy and sell, barter" , "Deal commercially" , "Skilled occupation" , "some say should be fair?" , "Deal - occupation" .)
'buying and selling' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for commerce that I've seen before include "Buying/selling activity" , "Business dealings" , "Trading activity" , "Transactions in goods and services" , "The buying and selling of goods and services" .)