Frank and impartial, is able and accomplished (6)
I believe the answer is:
candid
'frank' is the definition.
(I know that frank can be written as candid)
'able and accomplished' is the wordplay.
'able' becomes 'can'.
'and' is a charade indicator (letters next to each other).
'accomplished' becomes 'did' (to do something is to accomplish it).
'can'+'did'='CANDID'
'and impartial is' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for candid that I've seen before include "Open and truthful" , "Truthful and straightforward" , "Frank - open" , "Plain" , "Frank, honest" .)