So I cleaned the connections on the clock and it seemed to work...
However, I keep getting issues with my extended fuses...
avrdude: verifying ...
avrdude: WARNING: invalid value for unused bits in fuse "efuse", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xf4 instead of 0xfc (double check with your datasheet first).
avrdude: 1 bytes of efuse verified
avrdude: reading input file "0xd6"
avrdude: writing hfuse (1 bytes):
I checked, and triple checked the fuses on both the data sheet and Fuse calculator.
I'll do some more reading on this tomorrow, encase anyone else is curious.