sorry to be a nuisance on Christmas Eve but if I don't complete crossword it will spoil my Christmas!
29a Water bird hides in such extraordinary plants (8)
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Hi Gramps - Merry Christmas
Are you sure of your letters? I think it ought to be an anagram of "such" around a water bird (rail, perhaps?), but I can't find anything to fit.
Many thanks, Trevor, Mamma and Chrise. 21d was spelt incorrectly. I can finish and get back to my Scotch and mince pies.
A Very Merry Christmas to you all and good solving for 2015.