使用php在Wordpress自定义字段上隐藏锚文本

I am a noob at PHP & am trying to create a wordpress template using the Advanced Custom Fields plugin. The template does mostly what I want it to do but I need to hide the anchor text (the text that says BIO) so that it does not show on the page unless there is information entered into the coach_bio_1 field. The field data is wrapped in a div that shows with fancybox when the link is clicked. Here is the code, I realize that this is probably a simple fix, thanks for your helpI am a noob at PHP & am trying to create a word