This leg could show dexterity (7)

I believe the answer is:

sleight

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

'dexterity' is the definition.
(synonyms)

'this leg could' is the wordplay.
'this leg' can be anagrammed to 'SLEIGHT'.
But, I am unsure how the anagram is indicated.

'show' acts as a link.

Can you help me to learn more?

(Other definitions for sleight that I've seen before include "Artful trick" , "Cunning action" , "Handy skill" , "Conjuror uses this" , "Hits leg (anag) - cunning" .)

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

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