Crossword Genius

Reportedly lamenting parrot eating grand Ipomoea (7-5)

Ross

I believe the answer is:

morning-glory

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'ipomoea' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I can't see?

'reportedly lamenting parrot eating grand' is the wordplay.
I cannot quite see how this works, but
'parrot' could be 'lory' (term for a small parrot) and 'lory' is present in the answer.
'grand' could be 'm' (synonyms) and 'm' is found within the answer.
This explanation may well be incorrect...

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I've seen this clue in The Times.
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