Add a description / tip to fields on the WC Vendors Pro front end.

functions.php

<?php 

add_filter('wcv_product_description', 'custom_wcv_product_description');
function custom_wcv_product_description( $args ){
	  $args['desc_tip'] = true; 
    $args['description'] = 'REQUIRED.  Describe your product in detail for your customers.  Include size, materials &amp; any relevant information here.';
    return $args;
}


add_filter('wcv_vendor_store_description', 'custom_wcv_vendor_store_description');
function custom_wcv_vendor_store_description( $args ){
  	$args['desc_tip'] = true; 
    $args['description'] = 'Optional. Give a brief, keyword-rich description of your shop.  This is used with SEO.  This will be shown under your shop banner on your storefront.';
    return $args;
}