Disaster state, peace will come later (8)
I believe the answer is:
calamity
'disaster' is the definition.
(I know that disaster can be written as calamity)
'state peace will come later' is the wordplay.
I cannot quite understand how this works, but
'state' could be 'amity' (amity is a kind of state) and 'amity' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for calamity that I've seen before include "Blow" , "Musical set in Deadwood" , "15 [JANE] the frontierswoman" , "A disaster, like Western heroine Jane" , "distress" .)