Kit wears out some sporting equipment (5,3)

I believe the answer is:

water ski

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

'kit wears out some sporting equipment' is the definition.
I can't judge whether this defines the answer.

'kit wears out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'kit'+'wears'='kitwears'
'kitwears' with letters rearranged gives 'WATER-SKI'.

Can you help me to learn more?

(Other definitions for water ski that I've seen before include "slide over lake, say?" , "Aquaplane as a sport" .)

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

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