The term 'savvy about' can be broken down into four crossword solutions: UPON, ONTO, HIPTO. UPON is a preposition meaning 'at or near a particular place or time, ' while ONTO is another preposition meaning 'to a position on or over something.' HIPTO is an adverb meaning 'in a fashionable manner, ' which is often used to describe someone who is knowledgeable and aware of the latest trends. Therefore, the phrase 'savvy about' can be interpreted as being knowledgeable and aware of the latest trends.