Getting properly keyed up? (6)
I believe the answer is:
tuning
'getting' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's an association between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for tuning that I've seen before include "Adjusting, to receive radio signal perhaps" , "doing this to find a station" , "Modifying vehicle engines to improve their performance." , "Calibrating to a standard frequency" , "- Fork aids a musician" .)