Supernaturalism disregards reprisals when Halloween arrives (6)
I believe the answer is:
autumn
'supernaturalism' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for autumn that I've seen before include "Time of year" , "1 Season of mists and mellow fruitfulness" , "Browning happened then" , "American call it the fall" , "Fall in the US" .)