One leader who may be responsible for another (6)
I believe the answer is:
editor
'one leader who may' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'responsible for another' is the wordplay.
'responsible' becomes 'edi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'for' becomes 'to' (eg both can mean 'in the opinion of').
'another' becomes 'r' (I've seen this in other clues).
'edi'+'to'+'r'='EDITOR'
'be' acts as a link.
Can you help me to learn more?
(Other definitions for editor that I've seen before include "Cudlipp, for one" , "Chief journalist" , "cutter?" , "Press fellow" , "Person in charge of a publication" .)