The most common and most likely answer to this crossword clue is the 4 letter word DECO
I've seen this crossword clue in The Guardian
D
E
C
O
More clues leading to the result DECO
Buddy explains!
The straight part
We know that "Kind of art" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kind of art = deco.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 DECO mean?
DECO noun- (underwater diving) Decompression.
- A friendship book in which people add decorative elements such as drawings, stickers and sequins.