Can one help being one? (9)
I believe the answer is:
assistant
'can one' is the definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?
'help being one?' is the wordplay.
'help' becomes 'assist' (to assist someone is to help them).
'being one?' becomes 'ant' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'assist'+'ant'='ASSISTANT'
Can you help me to learn more?
(Other definitions for assistant that I've seen before include "Aide, helper" , "second" , "help required?" , "Deputy, subordinate" , "One helping" .)