Delight following priest's manifestation of divine will (10)
I believe the answer is:
revelation
'manifestation of divine will' is the definition.
'revelation' can be an answer for 'manifestation' (thesaurus). I am not certain of the 'of divine will' bit.
'delight following priest's' is the wordplay.
'delight' becomes 'elation' (I've seen this before).
'following' means one lot of letters go next to another.
'priest' becomes 'rev'.
'elation' after 'rev' is 'REVELATION'.
Can you help me to learn more?
(Other definitions for revelation that I've seen before include "unexpected display" , "joy?" , "NT book" , "enlightening book?" , "Extraordinary event" .)