It was a guess at age ... 50. I have since found this though:
Answer: QUINQUAGENARIAN, which describes someone in their fifties (i.e. “age wise”). I know the word (it’s one of my favourites – yes, I’m weird) but not having had hundreds of thousands of pounds lavished on my education, I’m left guessing the solution is something that can be broken down into a Latin phrase befitting the clue, something like QUIN-QUA-GENERI-AN. Google Translate has this as “without the degree or”, so, er… perhaps not.
Hope this helps. :-)