Bunch of geeks read over university physics for beginners (5)
I believe the answer is:
group
'bunch' is the definition.
(I've seen this before)
'of geeks read over university physics for beginners' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is found in the answer.
'over' could be 'up' (e.g. if your time is up it is over) and 'up' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for group that I've seen before include "Number of associated individuals" , "Set, faction" , "Band (of musicians)" , "Unit comprising several members" , "Set (of people)" .)