Complete religious work in Ireland (6)
I believe the answer is:
entire
'complete' is the definition.
(synonyms)
'religious work in ireland' is the wordplay.
'religious work in' becomes 'ent' (I can't justify this - if you can you should believe this answer much more).
'ireland' becomes 'ire' (abbreviation).
'ent'+'ire'='ENTIRE'
Can you help me to learn more?
(Other definitions for entire that I've seen before include "Whole - undamaged" , "in one piece" , "Whole; unbroken" , "Full, intact" , "Full and complete" .)