Country shack during Prohibition (6)
I believe the answer is:
bhutan
'country' is the definition.
(Bhutan is an example)
'shack during prohibition' is the wordplay.
'shack' becomes 'hut' (synonyms).
'during' means one lot of letters goes inside another.
'prohibition' becomes 'ban' (ban is a kind of prohibition).
'hut' going inside 'ban' is 'BHUTAN'.
(Other definitions for bhutan that I've seen before include "Indian protectorate in the southeast Himalayas" , "Kingdom in Central Asia" , "Bowman" , "Small country" , "Himalayan kingdom" .)