Disappearing with commercial vehicle is nigh hopeless (9)

I believe the answer is:

vanishing

'disappearing' is the definition.
(I know that vanishing is a type of disappearing)

'commercial vehicle is nigh hopeless' is the wordplay.
'commercial vehicle' becomes 'van' (I've seen this before).
'hopeless' indicates anagramming the letters.
'nigh' with letters rearranged gives 'hing'.
'van'+'is'+'hing'='VANISHING'

'with' acts as a link.

(Another definition for vanishing that I've seen is " Disappearing".)

I've seen this clue in The Guardian.

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