i read this http://drupal.org/node/676050, but i don't have enough knowledge to find the answer from comments there.
I use default taxonomy view 'taxonomy/term/%' page.

my taxonomy structure

----Term1 (0)
-------Subterm1 of Term1 (5)
-------Subterm2 of Term1 (10)

Technically there is no node belongs to Term1, but my Term1 page shows all of 15 nodes.
i'd like to show 'Term field' under Term1. Does this make sense?

i'm using Views attach and custom field to show 'Term field' below the list of 15 nodes in Term1 page.

With this code 

<?php 
$current = taxonomy_get_term(arg(2)); 
?>
<?php if ($current): ?>    
<div class="taxonomy-description">        
<?php echo $current->description; ?>    
</div>
<?php endif; ?>

i can show taxonomy description under Term1.

i tired code like this.

$test = term_fields_get_fields_values($data->term_fields_term_MyFieldName);
print $test;

returns array :-)

Thank you for your time.