Shrink from a certain stick-wielding official (5)

I believe the answer is:

macer

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'official' is the definition.
(I know that macer is a type of official)

'shrink from a certain stick-wielding' is the wordplay.
'MACER' is hidden in amongst the letters.
However, I am uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for macer that I've seen before include "Scots law court official" , "Scottish official" , "person in Glasgow court" , "Legal official" .)

I've seen this clue in The Times.

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