Concerning top class pragmatic person (7)

I believe the answer is:

realist

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

'pragmatic person' is the definition.
(I've seen this before)

'concerning top class' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'top class' becomes 'alist' (I am not sure about this - if you are sure you should believe this answer much more).
're'+'alist'='REALIST'

Can you help me to learn more?

(Other definitions for realist that I've seen before include "Is alert (anag)" , "Sensible man" , "One with a pragmatic attitude" , "Someone who's pragmatic" , "Non-dreamer?" .)

I've seen this clue in the Sydney Morning Herald.

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.