Answer:

talker

Answer	Crossword Clue
TALKER	One. Who. Will. Not. Shut. Up.
TALKER	Chatterbox
TALKER	Person who yaks

TALKER	One who runs on
TALKER	Motor-mouth
TALKER	Speaker.
TALKER	Garrulous one.
TALKER	Loquacious one.
TALKER	Gossip, for instance.
TALKER	Ma Bell client
TALKER	Loquacious one

TALKER	Conversationalist
TALKER	Motormouth
TALKER	Windy one
TALKER	Gasbag
TALKER	One may be smooth
TALKER	Yammerer
TALKER	Hardly the taciturn type

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.