You almost had it, except you're not doing anything with the result
$('.classCover').each(function(){
    $(this).text($(this).text().split(' ').reverse().join(' '));
});
                                                                        try this.
$('.classCover').each(function(){
    var link = $(this).text().split(' ');
    $(this).text(link[1] + "(" + link[0] + ")");
});