This offspring of a Christmas bird is not a chick. (1,5). Where Santa and his elves meet in July. (14,7). Where witches could not fly on Christmas Eve. (6)
Yes, 2 has been asked loads of times and I don't think it's been answered yet. You may want to look through these:
http://www.theanswerbank.co.uk/search/?q1=elves+meet+in+July
I'd be interested to see the answer. The second word could be holiday but I can't think of what the 14 letter word could be