Hi @mansp,
Apologies for the quality of the replies above, and the time it has taken to get you a solid answer – I will be following this up.
The automatic product short description is part of the standard WooCommerce functionality. I’ve attached a zip that if you unzip and add the “woocommerce” folder to your child theme, it should resolve the issue by stopping that text begin output there. If not, let me know and I’ll check it out.
Have to say, I really like what you’ve done with the theme!
– Ed