Be less strict about time before Easter (6)
I believe the answer is:
relent
'be less strict' is the definition.
(I've seen this before)
'about time before easter' is the wordplay.
'about' becomes 're' (regarding).
'time before easter' becomes 'lent' (Lent is the fast leading up to Easter).
're'+'lent'='RELENT'
(Other definitions for relent that I've seen before include "Become less severe and more forgiving" , "Be merciful" , "Become less stern than intended" , "Relax severity or opposition" , "Moderate" .)