猾

dog (犭) + bone (骨) = sly like a dog who knows how to get the bone

The dog radical points to cunning animal behavior as the source of slyness. 骨 mainly lends the huá sound; the meaning rests entirely with the animal element.

这只狐狸看起来很狡猾。

他用狡猾的方式骗过了所有人。