Device, appliance (7)
I believe the answer is:
machine
I believe this clue is a double definition.
'device' is the first definition.
(machine is a kind of device)
'appliance' is the second definition.
(thesaurus)
(Other definitions for machine that I've seen before include "Device providing energy to perform a task" , "Contraption" , "Nice ham (anag.)" , "Chain me to power-driven apparatus" , "See 12" .)