Renovation to the church Agnes works at (7)
I believe the answer is:
changes
'works at' is the definition.
Although both the answer and definition are verbs in their -s form, I cannot see how one could define the other.
'renovation to the church agnes' is the wordplay.
I cannot really understand how this works, but
'church' could be 'ch' (common abbreviation) and 'ch' is located in the answer.
an anagram of 'agnes' is 'anges' which is within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for changes that I've seen before include "Remixes" , "Modifications" , "Alterations" , "album track" , "Alters" .)