Crossword Genius

Say you've done the wrong thing (7)

Ross

I believe the answer is:

confess

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

'say' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for confess that I've seen before include "Plead guilty (in order to receive absolution?)" , "Admit (to crime)" , "Admit (to wrongdoing)" , "Tell a priest one's sins" , "Concede" .)

I've seen this clue in the Evening Standard.
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