Edit:- We have a group of words here:- (Go check Hint 1)
Goal:- Group these $16$ words into $4$ groups, each group containing $4$ words, and words in every group should have a common theme. Further after completing the groups, choose one word from each group and they can be again grouped into a common theme. Find the name of this Theme.
Hint 1 :-
The position of the words did not matter, so I brought back the scattered words into grouped words. :-)
Hint 2 :-
All the words are related to Academic Studies, or are they?
One group will be "Marks,Claw,Real,Time". Proceed with this and also try to find what common theme this contains...