Thanks.I'd never have found it. It's very esoteric for a crossword. I've checked it in Chambers and many online dictionaries but not there. I did find a refence on Google from some other AB type page. Not that I didn't believe you - I know you always come up with the answer . I just wanted to see if it could be found.
dwil .. it is in Chambers (10th Edition) .. look under "ree 2 or reed" where it says .. " an enclosure, esp a partially -roofed walled yard, eg for coal etc ..... " (S).