Abandon barren land (6)
I believe the answer is:
desert
I believe this is a double definition.
'abandon' is the first definition.
(I know that abandon can be written as desert)
'barren land' is the second definition.
(thesaurus)
(Other definitions for desert that I've seen before include "Arid area of sand" , "Eg, the Sahara" , "Abandon; dry region" , "Sandy waste" , "Kalahari, for example" .)