//* Customize the archive title (removes "Category: " and "Tag: " and so forth from archive titles)
add_filter( 'get_the_archive_title', 'twc_archive_title' );
function twc_archive_title( $title ) {
if ( is_category() ) {
$title = single_cat_title( '', false );
} elseif ( is_tag() ) {
$title = single_tag_title( '', false );
} elseif ( is_author() ) {
$title = '<span class="vcard">' . get_the_author() . '</span>';
} elseif ( is_post_type_archive() ) {
$title = post_type_archive_title( '', false );
} elseif ( is_tax() ) {
$title = single_term_title( '', false );
}
return $title;
}