Ban the writer returning to pub? Try (7)
I believe the answer is:
embargo
'ban' is the definition.
(thesaurus)
'the writer returning to pub? try' is the wordplay.
'the writer' becomes 'me' (the person who is writing these clues).
'returning' is a reversal indicator.
'to pub?' becomes 'bar' (I've seen this before).
'try' becomes 'go' (go is a kind of try).
'me' back-to-front is 'em'.
'em'+'bar'+'go'='EMBARGO'
(Other definitions for embargo that I've seen before include "Block" , "Government trade ban" , "Government order imposing a trade barrier" , "Ban on commerce - mob rage (anag)" , "Official ban on trade or commerce" .)