Made miserable to a certain extent by death (6)
I believe the answer is:
demise
'death' is the definition.
(I know that death can be written as demise)
'made miserable to a certain extent' is the wordplay.
'DEMISE' is hidden within the letters.
However, I am not sure how the hidden word is indicated.
'by' is the link.
Can you help me to learn more?
(Other definitions for demise that I've seen before include "Death or expiration" , "Passing" , "Death or termination" , "Death, collapse" , "(Person's) death" .)