Hi there,
the Woocommerce plugin uses hooks to add the various elements to its templates – you can see the hooks being used on the single product here:
https://github.com/woocommerce/woocommerce/blob/44d508e3327b1745866b0b251ec09414eb284eed/templates/content-single-product.php#L46-L62
So to move something like the meta first it needs be unhooked and then rehooked with a PHP Snippet like so:
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_meta', 40);
add_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_meta', 15);
The priority numbers are important – the woocommerce_template_single_meta is initally hooked in at a priority of 40, we remove it from there and add it back with a priority of 15 which comes before the single_excerpt