Everyday garment? (5)

I believe the answer is:

habit

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'garment?' is the definition.
(I know that habit is a more specific form of garment)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for habit that I've seen before include "Ingrained behaviour" , "It's second nature" , "Monk's robe or repetitive action" , "addictive practice" , "nun gets into" .)

I've seen this clue in the Evening Standard.

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