A seasonal sort of tide (4)

I believe the answer is:

yule

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'tide' is the definition.
(I have seen 'festive tide' mean 'yule' so perhaps 'tide' could also mean 'yule')

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for yule that I've seen before include "This time of year of old" , "Christmas period" , "Seasonal feast (arch.)" , "festive tide" , "Christmas-time" .)

I've seen this clue in the Evening Standard.

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