Possible Clues:

• Talks given by timid people
• Talk and talk? Bob does
• They might be protected by an 8-Across
• Participants in hat tricks?
• Talks for timid people
• Except for upsetting pieces on animals
• Just a little beastly to get the bar back with pieces
• Bat ribs of the mammals
• Poor batsmen; chatters
• Magicians pull them out of a hat