Source : Webster's Revised Unabridged Dictionary (1913)

Click \Click\, v. i. [imp. & p. p. {Clicked}; p. pr. & vb. n.
   {Clicking}.] [Prob. an onomatopoetic word: cf. OF. cliquier.
   {See Clack}, and cf. {Clink}, {Clique}.]
   To make a slight, sharp noise (or a succession of such
   noises), as by gentle striking; to tick.

         The varnished clock that clicked behind the door.
                                                  --Goldsmith.