Crossword Genius

What a bulb may be; a variety of tulip (3,2)

Ross

I believe the answer is:

lit up

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

'what a bulb may' is the definition.
I can't judge whether this definition defines the answer.

'a variety of tulip' is the wordplay.
'a variety of' is an anagram indicator.
'tulip' anagrammed gives 'LIT UP'.

'be' acts as a link.

Can you help me to learn more?

(Other definitions for lit up that I've seen before include "bulb so transformed room?" , "Started smoking - being drugged!" , "Illuminated (by drink or drugs?)" , "Flashing" , "like a bulb, perhaps?" .)

I've seen this clue in The Globe and Mail.
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