Work-shy (4,4)
I believe the answer is:
bone idle
'work-shy' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for bone idle that I've seen before include "Very lazy, may be ossified?" , "Altogether lazy, in an ossified way" , "Very lazy, from the marrow out" , "Not lifting a finger" , "Very, lazy, almost ossified" .)