The term 'SHORTHAND CRACKERJACK' is a combination of two words: 'SHORTHAND' and 'CRACKERJACK'. SHORTHAND is a method of writing quickly by using symbols or abbreviations for words and phrases. CRACKERJACK is an adjective that means excellent or outstanding. Therefore, the term 'SHORTHAND CRACKERJACK' refers to someone who is an expert in SHORTHAND writing. The crossword solution for this term is 'STENO', which is short for stenographer, a person who specializes in taking dictation in SHORTHAND.