Re my last solution; it's brilliant (8)

I believe the answer is:

masterly

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

'it's brilliant' is the definition.
(thesaurus)

're my last solution' is the wordplay.
're my last' can be anagrammed to 'MASTERLY'.
But, I'm not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for masterly that I've seen before include "Highly skilled" , "Showing exceptional skill" , "Expert" , "World-class" , "Virtuoso, consummate" .)

I've seen this clue in The Globe and Mail.

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.