The Accordion widget requires a repeater field either on the current page, preview page(post etc) or on an option page. The supported subfields are text, textarea, wysiwyg and for the features list a repeater field is required.
You find it easiest by searching for ACF Price Table in the Elementor Search Widget field:
Drag the following widget icon into your section to add the widget.
After adding the widget to your section/column the following settings are shown.
Field is a dropdown with the detected Repeater fields. When you select a repeater field numerous fields shown where you can select among the detected subfields.
You can style the various parts of the price table.