Fash is a Scottish slang word and being Scottish, I can't see it being relevant to the clue. We looked at this in the early days and discarded it as we couldn't think of a relevant phrase.
Got answers for the all except for 39.
19 is Christmas Hamper
35 is The Cricket on the Hearth
47 we think is Christmas Holiday
48 is St Stephen's Day (Look up "The Wren Hunt" on Google)
46 we have Christmas Pudding



