Well, I’ll look at it this way: I’ll be sparing two of you the agony of having to (possibly) make a similar decision next week. Three lovely clues. As much as I admire ginge’s construction, I’ve always been so vociferous about ghost anagrams that I couldn’t look at myself in the mirror if I went for it (not that I do much of that). Though I favor clues that include both definition (especially the somewhat misleading kind) and wordplay (separately, I mean), I think rambler’s clue is very nice, but I’m going with Rosalind’s
Completely transformed, I save new undulating curves (4,4)
because of said prejudice (I do think that the plural curves works with the singular wave).
Congratulations to the three of you, and a special mention for greedy kite with his five votes for three clues.
The prize is a film of the sinusoidal phenomenon at Tacoma Narrows in 1940. When I first saw this (over forty years ago) I was astounded by the man with the pipe, who looks as if he's on a constitutional. Nightmarish or what?
http://www.youtube.com/watch?v=j-zczJXSxnw
Best to all.