Has lady visited a grog shop? (7)
I believe the answer is:
'a grog shop?' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'has lady visited' is the wordplay.
'has lady' becomes 'she' (I am not sure about this - if you are sure you should believe this answer much more).
'visited' becomes 'been' ('he's been' could mean 'he's visited').
Can you help me to learn more?
(Other definitions for shebeen that I've seen before include "Unlicensed drinking den" , "tavern that's cheap?" , "Where alcoholic drink is sold illegally" , "in which spirits may be found" , "scene with moonshine?" .)