Clean of chalk marks (5)
I believe the answer is:
erase
(Other definitions for erase that I've seen before include "Clear" , "To remove all trace" , "Blot out" , "Rub out, cancel" , "Remove, wipe out" .)
I believe the answer is:
erase
(Other definitions for erase that I've seen before include "Clear" , "To remove all trace" , "Blot out" , "Rub out, cancel" , "Remove, wipe out" .)