Accordion for FAQ?

Yes, that is possible, but would require you to write custom CSS and JavaScript.

I’d start with this:

[display-posts wrapper_class=”display-posts-listing faq” include_content=”true”]

Then add JS to toggle a class of “expanded” when the post title is clicked: https://gist.github.com/billerickson/df06d49745542db6ab01440b598f2567

Then add CSS to hide the post content unless it has a class of “expanded”:

.display-posts-listing.faq .listing-item:not(.expanded) .content { display: none; }