elephant ear pruning
What is the proper way to prune back elephant ears?
Depends on where you're located. If you're in zones 11, 10, 9, even 8, where the plants can grow outdoors all year, and you have an elephant ear that seems too big, or is growing where you don't want it, just cut back the in the way leaf stalk(s) to the ground. Or, if the plant is too big for its spot, you can transplant it to another position. This article has more information: https://www.gardenguides.com/92668-transplant-elephant-ear.html
If by any chance you're talking about cutting back plants for the winter, here's an article on overwintering them: https://www.gardeningknowhow.com/ornamental/bulbs/elephant-ear/storing-elephant-ear-bulbs.htm