Raised concerns about setter becoming divine? (8)
I believe the answer is:
seraphic
'divine?' is the definition.
(thesaurus)
'raised concerns about setter' is the wordplay.
'raised' is a reversal indicator.
'concerns' becomes 'cares' ('care' can be a synonym of 'concern').
'about' indicates putting letters inside.
'setter' becomes 'phi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'cares' in reverse letter order is 'serac'.
'serac' placed around 'phi' is 'SERAPHIC'.
'becoming' acts as a link.
(Other definitions for seraphic that I've seen before include "serene" , "Angelic" , "To do with top angels" , "Like the highest ofder of angels" .)