In age so twisted, suffering pains (7)
I believe the answer is:
agonies
'suffering pains' is the definition.
'agonies' can be an answer for 'pains' (agony is a kind of pain). I'm unsure of the 'suffering' bit.
'in age so twisted' is the wordplay.
'twisted' indicates anagramming the letters.
'in'+'age'+'so'='inageso'
'inageso' with letters rearranged gives 'AGONIES'.
Can you help me to learn more?
(Other definitions for agonies that I've seen before include "Torments and sufferings" , "Pains" .)