Austere mascot in new design (8)

I believe the answer is:

monastic

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

'austere' is the definition.
(I've seen this in another clue)

'mascot in new design' is the wordplay.
'mascot in' can be anagrammed to 'MONASTIC'.
However, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for monastic that I've seen before include "Austere" , "following order" , "Brother's" , "Relating to life in a cloister" , "Of sequestered life under religious vows" .)

I've seen this clue in The Daily Express.

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