Northern Church worker after start of Easter showing delight (7)
I believe the answer is:
enchant
'delight' is the definition.
(enchanting is a kind of delighting)
'northern church worker after start of easter' is the wordplay.
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'church' becomes 'ch' (common abbreviation).
'worker' becomes 'ant' (worker is a type of ant).
'after' is a charade indicator (letters next to each other).
'start of' says to take the initial letters.
The first letter of 'easter' is 'e'.
'n'+'ch'+'ant'='nchant'
'nchant' after 'e' is 'ENCHANT'.
'showing' acts as a link.
(Other definitions for enchant that I've seen before include "transport" , "Entrance" , "Hypnotise" , "Captivate, charm" , "Beguile" .)