One as eligible keeps artistic support? (5)

I believe the answer is:

easel

I'm a little stuck... Click here to teach me more about this clue!

'artistic support' is the definition.
(an easel holds an artist's canvas up)

I don't understand the rest of the clue.

(Other definitions for easel that I've seen before include "artist's requisite" , "Support in the studio" , "Artist's supporting frame" , "Studio frame" , "Picture frame" .)

I've seen this clue in The Times and The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.