Misleading attraction of Christmas month initially over year (5)

I believe the answer is:

decoy

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'misleading attraction of christmas' is the definition.
I can't judge whether this defines the answer.

'month initially over year' is the wordplay.
'month' becomes 'dec' (abbreviation for December).
'initially' says to take the initial letters.
The first letters of 'over year' is 'oy'.
'dec'+'oy'='DECOY'

Can you help me to learn more?

(Other definitions for decoy that I've seen before include "Lure or snare" , "Entrap" , "Inveigle" , "It's used to lead into a trap" , "Lure to trap game" .)

I've seen this clue in The Times.

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