1...Some understatement initially about its movements on the night before christmas(5)...?O?S?
2...Never mind Frosty this is the snow queens natural demeanor(3-4)...ICE ????
3...Look even a king can become a strange one(4)...?IN?
4...Lime stone? (4)...?A?E
5...Look my goose is cooked , goes he relievedly!(5)...????E
6...A black and white fusion of ET's are these as described by abductees(3,5)...T?E ?R?Y?