Aware of extremely subversive and evil intent (8)
I believe the answer is:
sentient
'aware' is the definition.
(I've seen this before)
'extremely subversive and evil intent' is the wordplay.
'extremely' says to hollow out the word (remove centre letters).
'and' is a charade indicator (letters next to each other).
'evil' indicates an anagram.
'subversive' with its centre taken out is 'se'.
'intent' anagrammed gives 'ntient'.
'se'+'ntient'='SENTIENT'
'of' acts as a link.
(Other definitions for sentient that I've seen before include "Able to perceive/feel" , "Capable of feeling and perceiving things" , "Endowed with feeling and consciousness" , "Feeling, conscious" , "Able to perceive or feel things" .)