Melodious bird in John Keats' titular poem that is a tribute to its song that soars beyond sorrow and time

___ Hatter, Lewis Carroll character3 Random collection, for short4 Encouraging word before "boy!" or "girl!"4 ___ worthy (consider to be deserving)4 In ___ (extremely impressed)3 "The ___ in the Lion's Skin" (fable by Aesop)3 Misery or despair3 Red-haired twin in the Bible4