@d-healey Forgot to come back and thank you for the reply!
Since fixing the IPP thing I've not had any problems spitting out working plugins on the Macbook. Great fun. I've worked through the first synth tutorial and that raised some questions that I may post later but I got the right results.
I definitely have some other things to learn by nyself before I start bothering the forums again but I'm pretty sure I'll be back soon. ❤️