I believe Martha's Doctor was also solved, by CdM if I recall.

And the landmines one was also solved, by MF. And I could have sworn that some one had also posted the answer to Chalky's a while back, but maybe that was my imagination. I know I solved it and then didn't post the answer for some reason. So only the last three of Raak's list are outstanding.

I've got it: it's VOLUTE, and thanks for the hints.

I'd like to have a stab at Blob's - is it THEORISE? (I wouldn't be surprised if it was wrong though.)

Raak copied the buggy v1.0 of my outstanding clue. It's:
Small animal said to be run over by learner driver (6)

Is Rab a learner driver? If so, I wondered if it could be RABBIT (that is, Rab-hit)... just me clutching at straws again, I suppose.

No. It doesn't require anything outside general knowledge - although it could be a rubbish clue. There is a big clue in the amendment. The definition is 'driver'.