The Collaborative International Dictionary of English v.0.48:

Well-spoken \Well"-spo`ken\, a. [Well + speak.]
   [1913 Webster]
   1. Speaking well; speaking with fitness or grace; speaking
      kindly. "A knight well-spoken." --Shak.
      [1913 Webster]

   2. Spoken with propriety; as, well-spoken words.
      [1913 Webster]

WordNet (r) 3.0 (2006):

well-spoken
    adj 1: speaking or spoken fittingly or pleasingly; "a well-
           spoken gentleman"; "a few well-spoken words on civic
           pride"

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "well-spoken":
   Ciceronian, Demosthenian, Demosthenic, Tullian, articulate,
   correct, eloquent, facund, felicitous, free-speaking, free-spoken,
   glib, good-mannered, loud-speaking, loud-spoken, mannerly,
   outspoken, plain-speaking, plain-spoken, silver, silver-tongued,
   slick, smooth, smooth-spoken, smooth-tongued, soft-speaking,
   soft-spoken, speaking, spellbinding, talkative, talking,
   true-speaking, well-behaved, well-mannered