Small smooth rounded rock (6)
I believe the answer is:
pebble
(Other definitions for pebble that I've seen before include "Little rock" , "Small fragment of rock" , "A small smooth stone" , "Small roundish stone" , "Small, round stone" .)
I believe the answer is:
pebble
(Other definitions for pebble that I've seen before include "Little rock" , "Small fragment of rock" , "A small smooth stone" , "Small roundish stone" , "Small, round stone" .)