One rogue hugged leader (4)
I believe the answer is:
nero
'one rogue hugged leader' is the definition.
I can't judge whether this definition defines the answer.
'one rogue hugged leader' is the wordplay.
'rogue' indicates an anagram (letters go rogue).
'hugged' indicates putting letters inside.
'leader' becomes 'r' (I can't explain this - if you can you should give a lot more credence to this answer).
'one' is an anagram of 'neo'.
'neo' enclosing 'r' is 'NERO'.
Can you help me to learn more?
(Other definitions for nero that I've seen before include "Matricidal emperor" , "Barbarous Roman emperor" , "Roman Emperor, 54-68 AD" , "He's reported to have fiddled while Rome burned" , "Famous fiddler" .)