Cryptic crossword clue
Artist having item of furniture that can be valued 7

The most common and most likely answer to this crossword clue is the 7 letter word RATABLE

I've seen this crossword clue in The Daily Telegraph
R
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Buddy explains!

The straight part
We know that "that can be valued" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case that can be valued = ratable.
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.

What does RATABLE mean?

RATABLE adjective
  1. Able to be evaluated with a rating.

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