Crossword puzzle clue "where the last words of the long answers may be found"

Long long long long long long long time

Where the last words of the long answers may be found

Deg. of the professional who may instruct you to do the last words of the four longest puzzle answers

TV alien with a reboot announced in August 2018 (as found in the long answers)

Main thoroughfare in Manhattan (one can be found in each of the four long answers in this puzzle)

Cryptographers' successes (and what can be found in the circles in this puzzle's long answers)

Puzzle honoree found in eight long answers

They can be found in six long Across answers