Continually put off necessary tasks (13)

I believe the answer is:

procrastinate

(Other definitions for procrastinate that I've seen before include "Dilly-dally" , "Be dilatory" , "Stall" , "Postpone" , "Put off till later" .)

I've seen this clue in The 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.