It is an adgetive.
The word solvent is both a noun and an adjective. Example uses: Noun: This solvent will remove the stains from your driveway. Adjective: You need a solvent cleaner to remove grease and oil stains. Adjective: That is a good investment, they are a solvent company.
The words 'elephant team' forms a compound noun, two nouns joined to form a word with its own meaning. A pronoun is a word that takes the place of a noun is a sentence. An adjective is a word that describes a noun.