The term 'TIE UP THE PHONE' is a phrase used to describe the act of talking on the phone for an extended period of time. The crossword solutions for this phrase are YAK (3 letters), TALK (4 letters), and GAB (3 letters). YAK is a slang term for talking, usually in an informal or gossipy manner. TALK is a verb meaning to converse with someone, either face-to-face or over the phone. GAB is another slang term for talking, often used to describe talking in an excessive or frivolous manner. Therefore, the crossword solutions for the phrase 'TIE UP THE PHONE' refer to the act of talking on the phone for an extended period of time, either in an informal, gossipy, or excessive manner.