garlic vs garlic clove

garlic and garlic clove both are nouns.

Word	Noun	Adjective	Verb	Adverb
garlic	Yes	No	No	No
garlic clove	Yes	No	No	No

As nouns, garlic clove is a hyponym of garlic; that is, garlic clove is a word with a more specific, narrower meaning than garlic:

garlic: aromatic bulb used as seasoning
garlic clove: one of the small bulblets that can be split off of the axis of a larger garlic bulb

Other hyponyms of garlic include clove.

garlic (noun)	garlic clove (noun)
aromatic bulb used as seasoning	one of the small bulblets that can be split off of the axis of a larger garlic bulb
bulbous herb of southern Europe widely naturalized; bulb breaks up into separate strong-flavored cloves