clean slate vs fresh start

clean slate and fresh start both are nouns.

Word	Noun	Adjective	Verb	Adverb
clean slate	Yes	No	No	No
fresh start	Yes	No	No	No

As nouns, clean slate and fresh start are synonyms defined as:

clean slate and fresh start: an opportunity to start over without prejudice

Other synonyms of clean slate include tabula rasa.

clean slate (noun)	fresh start (noun)
an opportunity to start over without prejudice	an opportunity to start over without prejudice