In part, to be vulgar is honestly gaudy (6)

I believe the answer is:

garish

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'gaudy' is the definition.
(synonyms)

'in part to be vulgar is honestly' is the wordplay.
'GARISH' is hidden within the letters.
However, I am not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for garish that I've seen before include "Vulgarly colourful" , "Overbright and showy" , "Gaudy, lurid" , "Tastelessly bright" , "in bright colours" .)

I've seen this clue in The Irish Times.

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