Fellows outwardly a shade benevolent (6)
I believe the answer is:
humane
'benevolent' is the definition.
(I've seen this before)
'fellows outwardly a shade' is the wordplay.
'fellows' becomes 'man' (I am not sure about this - if you are sure you should believe this answer much more).
'outwardly' indicates putting letters inside (some letters go outside others).
'a shade' becomes 'hue' (both can mean a colour).
'man' placed inside 'hue' is 'HUMANE'.
Can you help me to learn more?
(Other definitions for humane that I've seen before include "Kind - compassionate" , "Kindly or merciful" , "Kind and sympathetic" , "Kind and civilised" , "Compassionate, benevolent" .)