Abandon virtue (6)
I believe the answer is:
desert
This clue is a double definition.
'abandon' is the first definition.
('desert' can be a synonym of 'abandon')
'virtue' is the second definition.
(thesaurus)
(Other definitions for desert that I've seen before include "Sahara or Gobi, say" , "Abandon, desolate area" , "Abandon, waterless area" , "Sweet" , "Callously abandon" .)