Comic again knew realisation (9)
I believe the answer is:
awakening
'realisation' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'comic again knew' is the wordplay.
'comic' indicates an anagram (an unusual or comical spelling).
'again'+'knew'='againknew'
'againknew' is an anagram of 'AWAKENING'.
Can you help me to learn more?
(Other definitions for awakening that I've seen before include "Cessation of sleep" , "Rousing - stirring" , "kindling" , "Stopping sleeping" , "Arousal from sleep" .)