Is it best to have laid out a stall that's disgusting? (4,5)

I believe the answer is:

last laugh

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'is it best to' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'laid out a stall that's disgusting?' is the wordplay.
'laid out' indicates anagramming the letters.
'that's disgusting?' becomes 'ugh' (expression of disgust).
'a'+'stall'='astall'
'astall' anagrammed gives 'lastla'.
'lastla'+'ugh'='LAST LAUGH'

'have' is the link.

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I've seen this clue in The Guardian.

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