Conservative is revolting in difficult moments (6)
I believe the answer is:
crises
'difficult moments' is the definition.
(I've seen this before)
'conservative is revolting in' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'revolting' becomes 'res' (I can't explain this - if you can you should believe this answer much more).
'in' is an insertion indicator.
'is' placed within 'res' is 'rises'.
'c'+'rises'='CRISES'
Can you help me to learn more?
(Other definitions for crises that I've seen before include "desperate times" , "moments of disaster" , "Times of great danger" , "desperate situations" , "difficult moments" .)