Every so often (3,3,2)

There are a few possibilities for this:

Which length description are you looking for?:

7 2,8

3,3,2

4,2,1,5

off and on

(Other definitions for off and on that I've seen before include "Now and then, stop and start" , "Intermittently" , "Intermittent" , "switch positions" , "the two sides at the Oval are this" .)

I've seen this clue in the Sydney Morning Herald.

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.