Two clues to go, but stuck! 10d Wow! Pastor is cross (4) REE?; and 8d Rab C's dispirited not having any wine (8). MAC?LE?S. I'm a bit partial to wine myself, but clearly not sufficient enough an oenologist...!
Many thanks, you two old faithfuls! I have 6a as 'Humber' marsh...will try to rework it, but may be back! Do you have 28d as moose, because I can't gel it with the clue...?