Also, Vietnam might defend description of former communist states (6)
I believe the answer is:
soviet
'description of former communist states' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'also vietnam might defend' is the wordplay.
'SOVIET' is hidden in amongst the letters.
However, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for soviet that I've seen before include "Former Russian council" , "Old government council" , "Old Russian council" , "Communist government council" , "Elected council in a communist country" .)