Energetic – with numerous pulses? (4,2,5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
full of beans
(Other definitions for full of beans that I've seen before include "Pods may be" , "Eager and alert; full of high spirits" , "after feast in seedy restaurant?" , "like a cowboy after a meal on the range?" , "Cassoulet is" .)