We should not attempt to stand the “Western Canon” approach on its head , and turn the study of literature into Jewish apologetics in place of Christian apologetics. Does stand something on its head mean stand on the head of something?
"To stand something on its head" in this context means to look at it completely the opposite way to how it was intended or to how it has been looked at until now. It's effectively the same as "to turn something upside down".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.