The wind blew all the clouds away.

Away is the adverb, what is/are the words the adverb modifies?

blew away/blew toward/blew East

away modifies the verb blew

The adverb "away" modifies the verb "blew."

In this sentence, the adverb "away" modifies the verb "blew." To determine this, you can ask yourself "How did the wind blow?" The answer is "away," indicating that "away" describes or modifies the action of blowing. Therefore, "away" is an adverb modifying the verb "blew."