Evil, manly and physically aggressive? Not I! (10)
I believe the answer is:
malevolent
'evil' is the definition.
(synonyms)
'physically aggressive? not i' is the wordplay.
'physically' becomes 'male' (I can't explain this - if you can you should give a lot more credence to this answer).
'aggressive?' becomes 'violent' (I've seen this before).
'not' is a deletion indicator.
'violent' with 'i' taken out is 'volent'.
'male'+'volent'='MALEVOLENT'
'manly and' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for malevolent that I've seen before include "mean-spirited" , "Evil-minded" , "Having evil intentions" , "very bad" , "bitter" .)