You can display tiers description as specific text under tiers by a small edit on the theme file. Please follow the instruction below.
1) Please don’t forget to take a back up of the file prior to any changes.
2) You need to add description of the tier via the backend.
3) Open tyler/event-framework/components/widgets/widget-sponsors.php via FTP or Cpanel
4) Search for the following code:
<h3 class=”sponsor”><span><?php echo $category->name; ?></span></h3>
5) Just below that line add the following code:
<h5><?php echo $category -> description;?> </h5>
6) Save the file.