Contrivance, trickery (8)
I believe the answer is:
artifice
I believe this clue is a double definition.
'contrivance' is the first definition.
(I have seen 'Clever contrivance ' mean 'artifice' so perhaps 'contrivance' could also mean 'artifice')
'trickery' is the second definition.
(I've seen this before)
(Other definitions for artifice that I've seen before include "Subtle deception" , "Ingenious stratagem" , "Clever trick intended to mislead" , "Clever device" , "Clever trick, crafty ploy" .)