clumping vs clip-clop

clumping and clip-clop both are nouns.

Word	Noun	Adjective	Verb	Adverb
clumping	Yes	No	No	No
clip-clop	Yes	No	No	No

As nouns, clumping and clip-clop are synonyms defined as:

clumping and clip-clop: the sound of a horse's hoofs hitting on a hard surface

Other synonyms of clumping include clippety-clop, clop, clopping, clunking.

clumping (noun)	clip-clop (noun)
the sound of a horse's hoofs hitting on a hard surface	the sound of a horse's hoofs hitting on a hard surface