Source : Webster's Revised Unabridged Dictionary (1913)

Talebearer \Tale"bear`er\, n.
   One who officiously tells tales; one who impertinently or
   maliciously communicates intelligence, scandal, etc., and
   makes mischief.

         Spies and talebearers, encouraged by her father, did
         their best to inflame her resentment.    --Macaulay.

Source : WordNet®

talebearer
     n : someone who gossips indiscreetly [syn: {tattletale}, {tattler},
          {taleteller}, {telltale}, {blabbermouth}]