Broken / cracked clutch cover
My clutch cover is cracked in the middle and I need to replace it. I went to the apple store and they told me I needed a whole new display... This seems absurd for just a clutch cover. Is this true?
No you shouldn't need a whole new display if only the plastic cover is broken.
As this is such a new system parts for it are hard to find. Here's a link to the previous model part Apple P/N 076-1441 - MacBook Air 13" Clutch Cover - Mid 2013. It might be the same as these systems are very close.
It is still a bit of work to replace it, follow this IFIXIT guide: MacBook Pro 13" Retina Display Mid 2014 Display Assembly Replacement. Once you get the display off you can then swap out the clutch cover.