Scary perks in a many-storeyed structure (10)

I believe the answer is:

skyscraper

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

'structure' is the definition.
(skyscraper is a kind of structure)

'scary perks in a many-storeyed' is the wordplay.
'scary perks' can be anagrammed to 'SKYSCRAPER'.
But, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for skyscraper that I've seen before include "Multi-storey edifice" , "Very tall building" , "Lofty city building" , "lots of flights here" , "structure" .)

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

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