Slender vet Les upset (6)

I believe the answer is:

svelte

'slender' is the definition.
(I know that slender can be written as svelte)

'vet les upset' is the wordplay.
'upset' is an anagram indicator.
'vet'+'les'='vetles'
'vetles' anagrammed gives 'SVELTE'.

(Other definitions for svelte that I've seen before include "Gracefully slim" , "Slim and attractive" , "Slim and stylish" , "Slender or sleek" , "free" .)

I've seen this clue in The Irish Independent.

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