I've put 'Dado' for 87 across as well. This is obviously the answer required but the clue is totally misleading! A Dado rail is NOT a wooden skirting board....it's a rail halfway up a wall, dividing the wall in two thereby enabling two different, contrasting wallpaper patterns to be pasted up. Possibly English is not the Hobbit compiler's first language!!
I should add that this isn't an attack on Hobbits in general....just this particular one:o)