What does the word claret mean?

Usage examples for claret

  1. " Vernon is a claret man; and so is Horace De Craye. – The Complete Project Gutenberg Works of George Meredith by George Meredith
  2. I know that Janet has brought some claret. – Macleod of Dare by William Black
  3. Why, only three weeks ago he spoke to me seriously about the glass of claret I drink at dinner. – The Red Hand of Ulster by George A. Birmingham