Crossword Genius

Rose's favourite boy? (5)

Ross

I believe the answer is:

petal

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

'rose's' is the definition.
The definition and answer can be both plants as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'favourite boy?' is the wordplay.
'favourite' becomes 'pet' (synonyms).
'boy?' becomes 'al' ().
'pet'+'al'='PETAL'

Can you help me to learn more?

(Other definitions for petal that I've seen before include "Leapt (anag.)" , "Floral feature" , "Flower part seen on plate" , "A bit of a bloomer" , "Bit of blooming" .)

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