3 Words to use with clack

We heard the wooden-sounding clack-clack-clack of machine gun fire.

And about that time I began to hear far off down the windy road, by which that sack had come, faintly at first and slowly louder and louder, the click clack clop of a lame horse coming nearer.

[CLACK speaketh in her ear.

3 Words to use with  clack