Land covered in Virginia creepers (4)
I believe the answer is:
acre
'land' is the definition.
(I've seen this before)
'covered in virginia creepers' is the wordplay.
'covered in' says the answer is hidden in the clue.
'ACRE' is hidden in the letters of 'virginia creepers'.
(Other definitions for acre that I've seen before include "region of ground" , "Care about the piece of land" , "Imperial land measure" , "stretch of land" , "Care about this bit of land" .)