Crossword Genius

Upset about one insect in bread? (9)

Ross

I believe the answer is:

croissant

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

'bread?' is the definition.
(croissant is a kind of bread)

'upset about one insect' is the wordplay.
I cannot really understand how this works, but
'about' could be 'c' (circa abbreviation) and 'c' is present in the answer.
'one' could be 'an' (I've seen this in other clues) and 'an' is present in the answer.
This explanation may well be incorrect...

'in' acts as a link.

Can you help me to learn more?

(Other definitions for croissant that I've seen before include "French breakfast food" , "A rich crescrent-shaped bread roll" , "Breakfast item" , "Tasty crescent-shaped French bread roll" , "Bread-roll" .)

I've seen this clue in The Hindu.
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