Current compiler's high point (4)
I believe the answer is:
acme
'high point' is the definition.
(I've seen this before)
'current compiler's' is the wordplay.
'current' becomes 'ac' (alternating current).
'compiler's' becomes 'me' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ac'+'me'='ACME'
Can you help me to learn more?
(Other definitions for acme that I've seen before include "Summit - maximum" , "Point of maximum development" , "Came awkwardly to the highest point" , "Height of perfection" , "Peak of excellence" .)