tags in product view

You can hide it with some custom CSS. If you aren’t sure where to put this code, this plugin will help: https://wordpress.org/plugins/simple-custom-css/

.single-product .product_meta span.tagged_as {
	display: none;
}

Or you can override and edit the product meta template: https://github.com/woothemes/woocommerce/blob/master/templates/single-product/meta.php#L41