Take me back to pub and leave ban (7)
I believe the answer is:
embargo
'ban' is the definition.
(I know that embargo is a more specific form of ban)
'take me back to pub and leave' is the wordplay.
'take me back' becomes 'em' (I can't explain this - if you can you should give a lot more credence to this answer).
'to pub' becomes 'bar' (both are drinking establishments).
'and' says to put letters next to each other.
'leave' becomes 'go' (to go is to depart or leave).
'em'+'bar'+'go'='EMBARGO'
Can you help me to learn more?
(Other definitions for embargo that I've seen before include "Commercial break" , "Official ban on trade or commerce" , "Trading restriction" , "Proscribe, ban" , "Stop" .)