Yes, CLOVES is a Scrabble word!

Letter values in Scrabble US: C 3, L 1, O 1, V 4, E 1, S 1.

Is it a valid word?

CLOVES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

aromatic flower bud of a clove tree; yields a spice
moderate sized very symmetrical red-flowered evergreen widely cultivated in the tropics for its flower buds which are source of cloves
one of the small bulblets that can be split off of the axis of a larger garlic bulb
spice from dried unopened flower bud of the clove tree; used whole or ground

Also: clove tree, syzygium aromaticum, eugenia aromaticum, eugenia caryophyllatum, garlic clove.