Informer has information to report (4)
I believe the answer is:
nose
'informer' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for nose that I've seen before include "Pry" , "Aroma of wine" , "Facial part" , "Nuzzle" , "See 7" .)