clothes horse
US /ˈkloʊðz hɔːrs/
UK /ˈkloʊðz hɔːrs/

1.
a frame or rack on which clothes are hung to dry or air
:
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She hung the wet laundry on the clothes horse.
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The clothes horse collapsed under the weight of the heavy blankets.
2.
a person who is excessively concerned with clothes and fashion
:
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My sister is a real clothes horse; she buys new outfits every week.
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Despite being a clothes horse, he always manages to look effortlessly chic.