Crossword Genius

Exhale in public revealing boob (9)

Ross

I believe the answer is:

oversight

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'boob' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'exhale in public' is the wordplay.
'exhale' becomes 'sigh' (I've seen this before).
'in' indicates putting letters inside.
'public' becomes 'overt' (both can mean well-known or unconcealed).
'sigh' placed inside 'overt' is 'OVERSIGHT'.

'revealing' is the link.

Can you help me to learn more?

(Other definitions for oversight that I've seen before include "Management" , "Failure to notice something" , "Carelessness" , "Slip-up" , "what supervisor has" .)

I've seen this clue in The Telegraph.
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