Where nation goes for oath on page, poisonous stuff (9)
I believe the answer is:
afterdamp
This clue could be a double definition.
'where nation goes for oath on page' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'poisonous stuff' is the second definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for afterdamp that I've seen before include "CO2 released in mines; famed part (anag.)" , "mining hazard" , "Dangerous atmosphere" .)