Can the elastic be omitted, for a "tent" dress?

I'm looking for a pattern I can covert to a simple a-line/tent dress…I like the lines on the top of the croquet, but wouldn't want the drop-waist. To any who have made it or have the pattern, is it designed that I could skip the elastic waist? Or another pattern you'd recommend? (I'm looking for super simple, straight lines, no curves, or extra bands/ruffles -- very minimalist).