FUSS..

You may notice I'm no longer Promising to be good
The parcel's very tempting, and I think that I could..
But the only thing that stops my prying little grasp
Are the eyes of a Knight, (and a sword in his grasp?)
I was tempted and tried, and oft made to wonder,
To examine your riddle and pull it asunder…
but.. An Immortal Terpsichordist
(has Santa been hitting the turps?)
An eternal elusion .. til next Monday.. it's confusion!

f.u. :-D