Charge for a part of the harness, we hear (7)
I believe the answer is:
arraign
'charge' is the definition.
(arraigning is a kind of charging)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for arraign that I've seen before include "Accuse, put on trial" , "put on a charge" , "Impeach" , "Act against" , "Accuse, find fault with" .)