Hi. Thank you for your response. I didn’t want to alter the parent theme. So I added the code you provided to my child theme functions.php but it didn’t work. However, I was able to resolve the issue by creating a site-specific plugin and then adding ‘excerpt’ code to that plugin. Not sure if either method is better/leaner. But I found the info on these articles.
https://www.wpbeginner.com/plugins/add-excerpts-to-your-pages-in-wordpress/
https://www.wpbeginner.com/beginners-guide/what-why-and-how-tos-of-creating-a-site-specific-wordpress-plugin/
