Crossword Genius

Dalliance in essence over, Andrew? I don't believe it! (7,5,5)

Ross

I believe the answer is:

wonders never cease

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

'dalliance in essence over andrew? i don't believe it' is the definition.
I know nothing about this answer so I can't tell whether this works.

'dalliance in essence over andrew? i don't believe it' is the wordplay.
'essence over andrew' can be anagrammed to 'WONDERS NEVER CEASE'.
But, I'm unsure how the anagram is indicated.

Can you help me to learn more?

I've seen this clue in The Guardian.
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