Prophesy a public relations pronouncement (7)
I believe the answer is:
predict
'prophesy' is the definition.
(I know that predict is a is a kind of of prophesy)
'a public relations pronouncement' is the wordplay.
'a public relations' becomes 'PR' (abbreviation).
'pronouncement' becomes 'edict' (I've seen this in another clue).
'pr'+'edict'='PREDICT'
(Other definitions for predict that I've seen before include "act as oracle" , "Estimate consequence of" , "Anticipate" , "Forecast" , "Foretell, prophesy" .)