Left one with nothing to read (6)
I believe the answer is:
'left' is the definition.
The answer and definition can be both related to change as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for erased that I've seen before include "Rubbed out, expunged" , "Removed by rubbing" , "torn off" , "Rubbed out, deleted" , "Obliterated" .)