Ninian I just penned a big reply and lost it!
Hope this one is OK. I knew you'd get 19a) with the web reference. With regard to 5d) I think they call that a double definition. The word can mean both to harvest and a short cut, I've heard it referred to at haidressers.
I've been on the forum quite a bit, so no, I'm not a stranger, but there don't seem to be very many DM enquiries at present.
All the best
Andy