Deserted (9)
There are a few possibilities for this:
abandoned
'deserted' is the definition.
(synonyms)
This is all the clue.
(Other definitions for abandoned that I've seen before include "lacking in self-control" , "Profligate - gave up - left" , "Derelict, deserted" , "Deserted; uninhibited" , "Deserted - shameless" .)
'deserted' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for desolate that I've seen before include "extremely sad" , "Forlorn and unhappy" , "Forlorn and abandoned" , "Barren" , "Lay waste, despoil" .)
'deserted' is the definition.
(marooning is a kind of deserting)
This is the entire clue.
(Other definitions for marooned that I've seen before include "Left high and dry" , "Me on road (anag.)" , "Abandoned on island" , "Abandoned like Robinson Crusoe" , "Left stranded with little hope of rescue" .)