Smooth(er) — padre's nap (anag) (9)

I believe the answer is:

sandpaper

(Other definitions for sandpaper that I've seen before include "Material used for smoothing" , "Abrasive material" , "Abrasive sheet (DIY)" , "Abrasive substance" , "Means of smoothing wood" .)

I've seen this clue in The Guardian.

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.