Piece of turf dug out by a golfer (5)
I believe the answer is:
divot
(Other definitions for divot that I've seen before include "Clump taken by a golf swing" , "Piece of turf dug out of a lawn" , "Sod" , "Piece of turf dug out of the fairway by a golf shot" , "Piece of turf dislodged by golf club" .)