Re: resignation
He hasn't resigned resigned, in the typically understood sense of the word. He's just stood down as head honcho of a committee (which he remains on.) Even though he is suspended from his party he will remain a salary drawing MP.
In fact technically speaking MP's can't resign from their jobs due to some outdated legal bollocks from centuries ago when being an MP was so unpopular people had to be press-ganged into doing it. There are a couple of Offices of the Crown kept specifically as get-out-of-job-free cards because holding such a position disqualifies you from serving in the House of Commons.