The most common and most likely answer to this crossword clue is the 2 plus 5 letter word EL GRECO
I've seen this crossword clue in Independent
E
L
G
R
E
C
O
More clues leading to the result EL GRECO
- Composer dismissing a writer from Italy and a painter from further East
- Drawer retiring greengrocer gleefully stocks
- Composer dismissing a writer and painter
- Painter returning from greengrocer gleefully
- Artist‘s joyrising about cobalt
- Coleridge upset having lost identity as artist
- Artist Coleridge upset after losing identity
- English company led by composer, not a painter
- Attic studio ideal for this artist?
- Cretan artist’s Spanish style
Buddy explains!

The straight part
We know that "Artist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case artist = el greco.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.