
1) Babble 2) Blab 3) Blabber 4) Blather 5) Blether 6) Chatter 7) Clack 8) Gabble 9) Gayer 10) Gibber 11) Maunder 12) More cheerful 13) Palaver 14) Piffle 15) Prate 16) Prattle 17) Smatter 18) Talk foolishly 19) Tattle 20) Tittle-tattle 21) To talk foolishly 22) Twaddle
Found on
https://www.crosswordclues.com/clue/blither

to talk foolishly; blather: He's blithering about some problem of his.
Found on
https://www.infoplease.com/dictionary/blither
No exact match found.