Hi,
You can edit the file show of the view product via the menu Display->Views and change the line:
echo JText::sprintf('MANUFACTURER_URL','<a href="'.$this->element->product_url.'" target="_blank">'.$this->element->product_url.'</a>');
to what you need.
I'm not sure I understand what you mean by "Description link (without the actual http address following." so I can give the precise code...
Also, if you use variants, you would have to replace the line:
echo JText::sprintf('MANUFACTURER_URL','<a href="'.$variant->product_url.'" target="_blank">'.$variant->product_url.'</a>');
in the same manner.