I’ve had a couple of this style of plastic clip crack. Wrapping it in thread and then applying super glue seems to work pretty well. I also tried wrapping with fishing line, but it came undone pretty quickly. Just wanted to share the tip! Now if only I had a fix for when the prongs on the other half break off.
Thanks! Yeah, I think the string is taking the major tension load, and the glue just keeps it from falling off / unwinding / abrading.