I don't u'stand your prob. with 19d: is it possible you've misunderstood s'thing in the instructions?
You only have to shade in with the appropriate colour (if you have a pencil in that colour!) your answer to 19d, since the word has been left out of the title! Whatever's in the vicinity plays no part in that at all --- in case you're interpreting the "or" symbolically!
I don't have the completed grid here any longer, but I think you may be on a wild goose chase (very Canadian as that may be...)!
I'll look in later to see if you now follow me. Otherwise I'm being unnecessarily obtuse myself, I fear!