Crossword Genius

Why is the good and bad bittersweet? (5,10)

Ross

I believe the answer is:

woody nightshade

'bittersweet?' is the definition.
('woody nightshade' can be a synonym of 'bittersweet')

'why is the good and bad' is the wordplay.
'bad' indicates anagramming the letters.
'why'+'is'+'the'+'good'+'and'='whyisthegoodand'
'whyisthegoodand' anagrammed gives 'WOODY NIGHTSHADE'.

(Other definitions for woody nightshade that I've seen before include "plant" , "bittersweet?" .)

I've seen this clue in The Times.
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