Loathe contributing to church at Easter (4)
I believe the answer is:
hate
'loathe' is the definition.
(I've seen this before)
'contributing to church at easter' is the wordplay.
'contributing to' says the answer is hidden in the clue.
'HATE' is hidden within 'church at easter'.
(Other definitions for hate that I've seen before include "Odium" , "Loathing" , "Abhor" , "Extreme dislike" , "[OPPOSITE OF] Be besotted with" .)