Crossword Genius

Wanted teacher indeed (7)

Ross

I believe the answer is:

desired

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

'wanted' is the definition.
(similar in meaning)

'teacher indeed' is the wordplay.
I cannot really understand how this works, but
'teacher' could be 'sir' (way of addressing a male teacher) and 'sir' is found in the answer.
The remaining letters 'deed' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for desired that I've seen before include "Sought after" , "requested" , "Had aspired to" , "Craved" , "much wished for" .)

I've seen this clue in The Daily Express.
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