Slav in e.g. Armenia fences off alcohol? (7)
I believe the answer is:
vinegar
'alcohol?' is the definition.
(vinegar is fermented alcohol)
'slav in e g armenia fences off' is the wordplay.
'fences off' indicates a hidden word.
'VINEGAR' is hidden in the letters of 'slav in e g armenia'.
(Other definitions for vinegar that I've seen before include "Liquid used as condiment or food preservative" , "Acetic acid" , "Pickling condiment" , "Soured wine, cider etc." , "Pickling fluid" .)