It's important to note that "-er" is a common suffix in English that can be used to form adjectives, adverbs, and nouns. In the case of "clever," the suffix "-er" is used to create a comparative adjective, meaning "more clever".
It's important to note that "-er" is a common suffix in English that can be used to form adjectives, adverbs, and nouns. In the case of "clever," the suffix "-er" is used to create a comparative adjective, meaning "more clever".