Tried working without energy or grime (4)
'grime' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for dust that I've seen before include "Powdered matter" , "Tiny particles of dirt, skin flakes etc" , "Powdery dirt in dry areas" , "Stud (anag)" , "Sprinkle -- powder" .)
'grime' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for dirt that I've seen before include "'Mud, dust or grime (4)'" , "Earth; grime" , "Grime - or controversial retention tax" , "Obscenity" , "Grime - scandal" .)