Have to have is a phrase that expresses an obligation or necessity. It is often used to describe something that is required or essential. The two crossword solutions for this phrase are 'NEED' and 'CRAVE'. NEED is a four-letter word that implies a requirement or necessity, while CRAVE is a five-letter word that expresses a strong desire or longing. Both words can be used to describe the same concept of having to have something.