Spring festival (6)
'spring festival' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for easter that I've seen before include "Egg-rolling time" , "festival time" , "Christian celebration for Teresa" , "- Day; - bunny" , "Snug retreat" .)
(Other definitions for eve that I've seen before include "Day before (an event)" , "Woman of Eden" , "Day before a festival" , "Day before; girl's name" , "Night before an event" .)