Teacher gave our cadet new shape (8)

I believe the answer is:

educator

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

'teacher' is the definition.
(someone who educates)

'our cadet new shape' is the wordplay.
'our cadet' can be anagrammed to 'EDUCATOR'.
However, I'm not clear how this is indicated.

'gave' acts as a link.

Can you help me to learn more?

(Other definitions for educator that I've seen before include "master, say" , "coach" , "Trainer, teacher" , "One who teaches others" , "Pedagogue, teacher" .)

I've seen this clue in The Daily Express.

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