Partly uprooted catnip, roses and stonecrop (5)
I believe the answer is:
orpin
'stonecrop' is the definition.
(I've seen this before)
'partly uprooted catnip roses' is the wordplay.
'uprooted' says the letters should be written in reverse (in a down clue, letters go up).
'partly' indicates a hidden word (part of the clue is used).
'nipro' is hidden in the letters of 'catnip roses'.
'nipro' written backwards gives 'ORPIN'.
'and' acts as a link.
(Other definitions for orpin that I've seen before include "Plant" , "Purple, broad-leafed stonecrop" , "Stonecrop that's purple" , "Variety of stonecrop" , "Bloomer" .)