Power or frequency, essentially (4)

I believe the answer is:

rate

(Other definitions for rate that I've seen before include "Fixed price or relative speed" , "Rank; fee" , "Assess; be worthy of" , "Estimate value of - speed" , "quality" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.