The term 'Be a Party To' can be broken down into three crossword solutions: ABET (4 letters), FETE (4 letters), and HOST (4 letters). ABET means to assist or support someone in doing something, usually something wrong or illegal. FETE is a French word meaning a festive celebration or party. Finally, HOST means to organize and provide the necessities for a party or event. Therefore, the phrase 'Be a Party To' can be interpreted as taking part in a celebration or event, either by assisting in its organization or by attending it.