Make No Bones About Meaning

(idiomatic) To say something clearly and without hesitation, although it may be unpleasant.

Example: 1919, W. Somerset Maugham, The Moon and Sixpence, ch. 12
  I was prepared to be persuasive, touching, and hortatory, admonitory and expostulating, if need be vituperative even, indignant and sarcastic; but what the devil does a mentor do when the sinner makes no bones about confessing his sin?