Cryptic crossword clue
Forbidden City artist’s a blank slate 6,4

The most common and most likely answer to this crossword clue is the 6 plus 4 letter word TABULA RASA

I've seen this crossword clue in The Guardian
T
A
B
U
L
A
R
A
S
A

Buddy explains!

The straight part
We know that "blank slate/blank slate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case blank slate/blank slate = tabula rasa.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

Crossword Answer definitions

Latest crossword clues with full explanations