Conclude not a single blazing thing! (7)
I believe the answer is:
inferno
'a single blazing thing' is the definition.
The definition and answer can be both related to natural events as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'conclude not' is the wordplay.
'conclude' becomes 'infer' (inferring is a kind of concluding).
'not' becomes 'no' (negative).
'infer'+'no'='INFERNO'
Can you help me to learn more?
(Other definitions for inferno that I've seen before include "A raging fire as in hell - ask Dante" , "Terrible fire" , "A raging fire like hell" , "Fierce fire" , "Where Satan lives and sinners go" .)