Should I be doing this with my wrists at the top of my backswing?

Kinda hard to explain but I’ll try.

I have a rather outside takeaway (by choice) and “fall into” the slot to get shallow before committing to my downswing.

In my last lesson with my coach, he told me that I should be using the force of my club to hinge/bend my wrists and “flick” the club to create speed and help with my chunking (huge problem for me).

Is this common practice? Not sure if it’s just an early feel thing but so far it’s only hurt my consistency. Doing this has made the club head fall way behind and I think it’s actually increased my chunking.