Another painter upset I'm goin' with Dali (10)

I believe the answer is:

modigliani

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

'another painter' is the definition.
'modigliani' can be an answer for 'painter' (I've seen this before). I'm not certain of the 'another' bit.

'upset i'm goin' with dali' is the wordplay.
'upset' indicates an anagram.
'with' says to put letters next to each other.
'im'+'goin'='imgoin'
'imgoin' put after 'dali' is 'daliimgoin'.
'daliimgoin' is an anagram of 'MODIGLIANI'.

Can you help me to learn more?

(Other definitions for modigliani that I've seen before include "artist" , "painter" .)

I've seen this clue in The Guardian.

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.