Standard aid program on extremely grim model (8)

I believe the answer is:

paradigm

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

'model' is the definition.
(I know that paradigm is a type of model)

'standard aid program on extremely grim' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'aid program on' becomes 'adi' (I can't justify this - if you can you should believe this answer much more).
'extremely' says to hollow out the word (remove centre letters) (letters on the extremes of the word are used).
'grim' with its middle taken out is 'gm'.
'par'+'adi'+'gm'='PARADIGM'

Can you help me to learn more?

(Other definitions for paradigm that I've seen before include "Framework or typical example" , "Adam grip (anag.)" , "Typical example or pattern" , "Archetype" , "Pattern -conceptual framework" .)

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.