roach clip vs pair of pincers

roach clip and pair of pincers both are nouns.

Word	Noun	Adjective	Verb	Adverb
roach clip	Yes	No	No	No
pair of pincers	Yes	No	No	No

As nouns, pair of pincers is a hypernym of roach clip; that is, pair of pincers is a word with a broader meaning than roach clip:

roach clip: metal tweezers used by marijuana smokers to hold a roach
pair of pincers: a hand tool for holding consisting of a compound lever for grasping

Other hypernyms of roach clip include pair of tweezers, pincer, tweezer.

roach clip (noun)	pair of pincers (noun)
metal tweezers used by marijuana smokers to hold a roach	a hand tool for holding consisting of a compound lever for grasping