Beer, for example, at inn -- 'bier' abroad (9)
I believe the answer is:
inebriant
'beer for example' is the definition.
(beer is a kind of inebriant)
'at inn bier abroad' is the wordplay.
'abroad' indicates anagramming the letters.
'at'+'inn'+'bier'='atinnbier'
'atinnbier' anagrammed gives 'INEBRIANT'.
(Other definitions for inebriant that I've seen before include "drunk - on this?" , "Heady" , "Whisky, for example" , "Intoxicating" .)