Blather (3)
I believe the answer is:
pap
'blather' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pap that I've seen before include "Dog with a camera" , "Mushy food for children or invalids" , "Palindromic semi-liquid food as for babies or invalids" , "Palindromic food for infants" , "Bland soft food" .)