Insidious cunning (5)
I believe the answer is:
guile
(Other definitions for guile that I've seen before include "Deceitful cunning" , "Sly intelligence" , "Cunning, deceit" , "Craftiness" , "Crafty behaviour" .)
I believe the answer is:
guile
(Other definitions for guile that I've seen before include "Deceitful cunning" , "Sly intelligence" , "Cunning, deceit" , "Craftiness" , "Crafty behaviour" .)