Heavenly messengers
'heavenly messengers' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for angels that I've seen before include "See 9" , "Heavenly beings" , "Theatrical investors" , "Charlie's - - (TV)" , "Winged heavenly messengers" .)
(Other definitions for oracles that I've seen before include "Places where ancient Greek consulted their gods" , "Authoritative statements" , "Prophetic authorities" , "Prophets, seers" , "mysterious utterances" .)