I don't know what to say faced with silly baby's prattle (6)
I believe the answer is:
yabber
'prattle' is the definition.
Both the definition and answer are singular nouns.
Maybe they are linked in a way I don't understand?
'i don't know what to say faced with silly baby's' is the wordplay.
'i don't know what to say' becomes 'er' (I can't justify this - if you can you should believe this answer much more).
'faced with' is a charade indicator (letters next to each other) (some letters act as the front or face of the word).
'silly' indicates anagramming the letters.
'baby' anagrammed gives 'yabb'.
'er' after 'yabb' is 'YABBER'.
Can you help me to learn more?
(Other definitions for yabber that I've seen before include "Conversation in Sydney" , "rabbit on" , "Chatter" .)