Terry got this in 39 seconds, it's not fiendish my good man, but it's a good grid that can be for certain.

Tis fiendish in my eyes - got colors and fevers quick-ish but couldn't have gotten the others but when I saw it it was clever and I loved it, though surely I would have preferred not to get "colors" wrong rather than colors who end in a vowel, which seems overly specific and no one would get it