Staggered out of Belfast bar drunk around midnight with journalist (13)
I believe the answer is:
flabbergasted
'staggered' is the definition.
(thesaurus)
'belfast bar drunk around midnight with journalist' is the wordplay.
I cannot really see how this works, but
'bar' could be 'gas' (gas is a kind of bar) and 'gas' is present in the answer.
'journalist' could be 'ed' (short for editor) and 'ed' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'out of' is the link.
Can you help me to learn more?
(Other definitions for flabbergasted that I've seen before include "Thunderstruck" , "Greatly surprised" , "Knocked for six" , "Dumbfounded" , "Confounded" .)