The term 'Summer Acquisition' can be broken down into two crossword solutions: TAN (3 letters) and SUNTAN (6 letters). TAN is a shortened form of the word 'TANNED, ' which is a result of exposure to the sun's ultraviolet rays. A suntan is a darker shade of TAN, which is achieved by prolonged exposure to the sun. Therefore, the term 'Summer Acquisition' refers to the process of acquiring a TAN or suntan during the summer months.