Might one bite out of indignation? (4)

I believe the answer is:

gnat

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

'might one bite out of indignation?' is the definition.
I can't tell whether this defines the answer.

'of indignation?' is the wordplay.
'of' indicates the answer is hidden within the clue.
'GNAT' can be found hidden inside 'indignation'.

Can you help me to learn more?

(Other definitions for gnat that I've seen before include "Small biter" , "mozzie" , "Small fly that bites" , "Two-winged fly" , "Small biting fly" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.