Wrongful arrest, one that’s glaring (6)

I believe the answer is:

starer

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

'one that's glaring' is the definition.
I can't tell whether this defines the answer.

'wrongful arrest' is the wordplay.
'wrongful' indicates anagramming the letters (I've seen this in other clues).
'arrest' with letters rearranged gives 'STARER'.

Can you help me to learn more?

(Other definitions for starer that I've seen before include "looker" , "Person gawping" , "One gazing intently" , "keen viewer" .)

I've seen this clue in The Guardian.

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