Contemporary scholar gathering speed
I believe the answer is:
space age
'contemporary scholar gathering speed' is the definition.
I can't judge whether this definition defines the answer.
'contemporary scholar gathering speed' is the wordplay.
'contemporary scholar' becomes 'sage' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'gathering' means one lot of letters goes inside another.
'speed' becomes 'pace' (pace is a kind of speed).
'sage' going around 'pace' is 'SPACE AGE'.
Can you help me to learn more?
(Other definitions for space age that I've seen before include "progress since nineteen fifty seven" , "Now we can travel so far!" , "Modern times" , "(Technologically) highly advanced" , "These days" .)