Puoi semplicemente modificare la riga sotto $result :
codice:
if ( WyzHelpers::wyz_sub_can_bus_owner_do( $author_id,'wyzi_sub_business_show_email_1') ) 
{
    if ( '' != $email ) 
    {
        $result .= '<p class="email"><b>'.esc_html__('Email','wyz-agenda').'</b>  <a href="mailto:'.$email.'">Scrivi email</a> </p>';
    }
} 




if ( WyzHelpers::wyz_sub_can_bus_owner_do( $author_id,'wyzi_sub_business_show_website_url') )
{
    if ( '' !== $website )
    {
        $result .= '<p class="website"><b>'.esc_html__('Website','wyz-agenda').'</b> <a target="_blank" href="' . esc_url( $website ) . '"> ' . esc_html( 'Visita sito' ) . '</a></p>';
    }
}