still stuck in bottom corner
43a ornamental stone ----l-
48a form of pasta 9blanks [fettucini?]
51a bird's sound 7blanks [not a bleedin' clue!]
33d amendment/ improvement r-f--------n [if 'lino' is correect at 54a for floorcovering]
43d pleasant sounding ------l [if 'lino' is correect at 54a for floorcovering]
47d state of near insensibility -----r
Pretty dumb start to 2012, eh?
Sort me out folks!