Wallace will start in his new role in the New Year.
He allegedly referred to young women under his management as his "harem".
He said MPs want to be held accountable by journalists, defending Michael Morrah.
Woman's Day, New Zealand Women's Weekly and The Listener are all coming back.
Newstalk ZB "sincerely apologises" for the alleged defamatory material published in December 2018.
"She came in like a revolutionary and took people by storm."
The man is reportedly facing the courts again for possessing and distributing child sex abuse content.
It's been called "unacceptable" by a domestic violence expert.
"We apologise for this mistake."