Last one. 19a. A host of animals received by dentist from recalcitrant patient? N-A-. I think it's Noah- I can see the animal host connection, but not the patient's dentist.
Could it be, that NH in Noah stands for National Health? Not entirely sure on this working out either. Sure someone will answer this for you soon. Sure it is Noah, too, Noah's Ark.
Many thanks to you all on this fine sunny morning. Not one of the better clues I feel, since in the Eagle comics of old, it was agh, not ah, for a painful yell. But then in these days when TV announcers say "haitch" not "aitch", what can we expect! I digress. Forgive me please.