You seem to have mis-typed compound. Otherwise, a great grid!

I took a while to see what was going on, and realise the first groups I'd spotted were red herrings, so I had to start again, but I managed it, though I had to stare at the onager line for ages to see the connection. I really connecting word being used in a different group. Thank you.

@Vicky. Thank you! I'll correct it now. I hope it didn't confuse things.

Amalgam is also spelled incorrectly.