Crossword Genius

A real artist, again, is hard to find (4)

Ross

I believe the answer is:

rare

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

'hard to find' is the definition.
(I've seen this in another clue)

'a real artist again' is the wordplay.
'a real artist' becomes 'ra' (this could be a standard abbreviation which I don't know about).
'again' becomes 're' (prefix meaning 'again').
'ra'+'re'='RARE'

'is' is the link.

Can you help me to learn more?

(Other definitions for rare that I've seen before include "Very scarce, hardly cooked" , "like gold dust" , "Infrequent like underdone meat" , "thin on the ground" , "Not easily come by like undercooked meat" .)

I've seen this clue in the Evening Standard.
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