I did have the right answer, though I didn't get (and don't particularly like, sorry!) knit/stink/niff etc.
After solving 1-6, I painstakingly read the definitions of those words - and kept my eyes peeled for words beginning 'gri'(as far as I'd got). The definition for 'novice' took me to 'griffin' - and then all I had to do was check that in Chambers.
A very enjoyable puzzle - thanks!