edible cockle vs cockle

edible cockle and cockle both are nouns.

Word	Noun	Adjective	Verb	Adverb
edible cockle	Yes	No	No	No
cockle	Yes	No	Yes	No

As nouns, cockle is a hypernym of edible cockle; that is, cockle is a word with a broader meaning than edible cockle:

edible cockle: common edible European cockle
cockle: common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs

edible cockle (noun)	cockle (noun)
common edible European cockle	common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs
	common edible European bivalve

edible cockle (verb)	cockle (verb)
	to gather something into small wrinkles or folds
	stir up (water) so as to form ripples