Rich with greenery (4)
I believe the answer is:
lush
'rich with greenery' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lush that I've seen before include "Luxuriant (vegetation)" , "Luxuriant - drunkard (slang)" , "Lavish - boozer" , "Of grass, growing thick and strong" , "Flourishing - drunkard (slang)" .)