Mature; cultivated (5)
I believe the answer is:
grown
I believe this clue is a double definition.
'mature' is the first definition.
(similar in meaning)
'cultivated' is the second definition.
(I've seen this before)
(Other definitions for grown that I've seen before include "increased in stature?" , "Raised; having got bigger" , "Fully developed" , "Big" , "Cultivated" .)