Cincinnati councillor's nervous twitch (3)

I believe the answer is:

tic

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

'nervous twitch' is the definition.
(involuntary twitch in the body)

'cincinnati councillor's' is the wordplay.
'TIC' is hidden within the letters.
However, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for tic that I've seen before include "Muscle twitch" , "Nervous spasm" , "Twitch in analytical way" , "Convulsive twitch (of face)" , "Convulsion" .)

I've seen this clue in The Sun.

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