Holiday break for Teresa (6)

I believe the answer is:

easter

I'm a little stuck... Click here to teach me more about this clue!

'holiday' is the definition.
(Easter is a Christian holiday)

'break for teresa' is the wordplay.
'teresa' can be anagrammed to 'EASTER'.
Though, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for easter that I've seen before include "See art at this time of year" , "Christian festival in Spring" , "Major Christian festival in April" , "Time to parade" , "Christian celebration for Teresa" .)

I've seen this clue in The Globe and Mail.

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