Zero to interest me about trade ban (7)
I believe the answer is:
'trade ban' is the definition.
(I've seen this before)
'zero to interest me about' is the wordplay.
'zero' becomes 'o'.
'to interest' becomes 'grab' (I've seen this before).
'about' is a reversal indicator.
'ograbme' in reverse letter order is 'EMBARGO'.
(Other definitions for embargo that I've seen before include "Order forbidding ships to enter or leave port, and a ban on trade", "Ban; prohibition", "Government order imposing a trade barrier", "Legal stoppage of commerce", "Prohibit".)