Crossword Genius

This page surely hadn't failing! (6,9)

Ross

I believe the answer is:

sunday telegraph

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'this' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'page surely hadn't failing' is the wordplay.
'failing' indicates anagramming the letters (a failed spelling of the word).
'page'+'surely'+'hadnt'='pagesurelyhadnt'
'pagesurelyhadnt' with letters rearranged gives 'SUNDAY TELEGRAPH'.

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I've seen this clue in The Telegraph.
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