Pre-Easter (6)
I believe the answer is:
lenten
'pre-easter' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lenten that I've seen before include "Of the pre-Easter period" , "Of the time just before Easter" , "Of the Christian penitential season" , "Appropriate to period before Easter" , "Referring to a fast time" .)