Ban accordingly restricting business degree (7)
I believe the answer is:
Here is my best explanation:
'ban' is the definition.
(I've seen this before)
'accordingly restricting business degree' is the subsidiary indication.
'accordingly' becomes 'ergo' ('ergo' can be a synonym of 'accordingly').
'restricting business' is an insertion indicator (I've seen this in other clues).
'degree' becomes 'mba' (MBA is an example).
'ergo' going around 'mba' is 'embargo'.
(Other definitions for embargo that I've seen before include "Boycott", "Order intended to prevent trade", "Legal stoppage of commerce", "Prevent publication", "Trading restriction", "Official prohibition as on trade", "Prohibit", "Commercial break", "Ban; prohibition" and "Barrier to trade".)