Rough spot on an artist's back (5)

I believe the answer is:

raspy

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

'rough spot on an artist's back' is the definition.
'raspy' can be an answer for 'rough' (I've seen this in another clue). I'm not sure about the 'spot on an artist's back' bit.

'rough spot on an artist's' is the wordplay.
'rough spot' becomes 'spy' (synonyms. I am not sure about the 'rough' bit.).
'on' is a charade indicator (letters next to each other).
'an artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'spy' after 'ra' is 'RASPY'.

Can you help me to learn more?

(Another definition for raspy that I've seen is " Harsh, grating".)

I've seen this clue in The Daily Express.

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.