Raised concerns about setter emulating a heavenly being (8)
I believe the answer is:
seraphic
'emulating a heavenly being' is the definition.
I can't tell whether this definition defines the answer.
'raised concerns about setter' is the wordplay.
'raised' says the letters should be written backwards (going up in a down clue).
'concerns' becomes 'cares' ('care' can be a synonym of 'concern').
'about' is an insertion indicator.
'setter' becomes 'Phi' (Independent crossword setter).
'cares' in reverse letter order is 'serac'.
'serac' going around 'phi' is 'SERAPHIC'.
Can you help me to learn more?
(Other definitions for seraphic that I've seen before include "serene" , "To do with top angels" , "Angelic" , "Like the highest ofder of angels" .)