Artiest ready in splendid apparels (7)

I believe the answer is:

attires

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

'apparels' is the definition.
(attire is a kind of apparel)

'artiest ready in splendid' is the wordplay.
'artiest' can be anagrammed to 'ATTIRES'.
But, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for attires that I've seen before include "Clothes" , "Dresses" .)

I've seen this clue in the Sydney Morning Herald.

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