Creeper (3)
I believe the answer is:
ivy
'creeper' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ivy that I've seen before include "Song: 'Poison --'" , "Evergreen creeping plant" , "Vine with evergreen leaves" , "The Hedera genus of evergreen climbers" , "Old World vine" .)