Problem bar going partly for Prohibition? (7)
I believe the answer is:
embargo
'prohibition?' is the definition.
(thesaurus)
'problem bar going partly' is the wordplay.
'partly' says the answer is hidden in the clue.
'EMBARGO' is hidden in the letters of 'problem bar going'.
'for' acts as a link.
(Other definitions for embargo that I've seen before include "Stop" , "Trading ban" , "Ban or restraint on trade" , "Government order imposing a trade barrier" , "Trade stoppage" .)