Prophet to burn report (4)
I believe the answer is:
seer
'prophet' is the definition.
(both can mean someone who tells the future)
'burn report' is the wordplay.
'burn' becomes 'sear' (sear can mean to burn).
'report' indicates a 'sounds like' (homophone) clue (as heard, or reported by someone).
'sear' is a homophone of 'SEER'.
'to' acts as a link.
(Other definitions for seer that I've seen before include "Wise person" , "Clairvoyant, visionary" , "I envisage" , "Regard with respect" , "wise fellow" .)