Tulip cultivated -- as bulb may be? (3,2)
I believe the answer is:
lit up
'as bulb may be?' is the definition.
'tulip cultivated' is the wordplay.
'cultivated' indicates an anagram.
'tulip' anagrammed gives 'LIT UP'.
(Other definitions for lit up that I've seen before include "like a bulb, perhaps?" , "Prepared to smoke" , "high" , "Drunk (informal)" , "bulb so transformed room?" .)