Crossword Genius

He shouldn't leave any wrong impressions (11)

Ross

I believe the answer is:

proofreader

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

'he shouldn't leave any wrong impressions' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'he' is the wordplay.
I cannot quite see how this works, but
'he' could be 'reade' and 'reade' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for proofreader that I've seen before include "one who a publisher employs?" , "Text checker" , "one marking scripts" .)

I've seen this clue in The Globe and Mail.
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