Drupal theme Flickr photoset into Foundation Clearing gallery

gistfile1.php

<?php

function themename_flickrfield_photoset($variables) {
  $img = $variables['0'];
  $photo_url = $variables['1'];
  $formatter = $variables['2'];
  $photo_data = $variables['3'];
  $node = $variables['4'];
  //
  $output = '<ul class="clearing-thumbs flickr-photoset">';
  if (module_exists('flickr_sets')) {
    $photos = flickr_set_load($photo_data['id']);
    foreach ((array) $photos['photoset']['photo'] as $photo) {
      // Insert owner into $photo because theme_flickr_photo needs it.
      $photo['owner'] = $photos['photoset']['owner'];
      $title = is_array($photo['title']) ? $photo['title']['_content'] : $photo['title'];
      $img = flickr_img($photo, $formatter, array('data-caption' => $photo['title']));
      $original = flickr_photo_img($photo);
      $links[] = l($img, $original, array('html' => TRUE));
    }
    // Theme item list here:
    $output = theme('item_list', array('items' => $links, 'attributes' => array(
      'class' => array(
        'clearing-thumbs',
      ),
      'data-clearing' => 'data-clearing',
    )));
  }
  //
  $output .= '</div>';
  $output .= '<div class="flickr-photoset-meta">';
  $output .= '<p>' . $photo_data['description']['_content'] . '</p>';
  $output .= '<cite>' . l(t('Source: Flickr'), $photo_url) . '</cite>';
  $output .= '</div>';
  return $output;
}