Small creeping plant (9)
I believe the answer is:
speedwell
'small creeping plant' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for speedwell that I've seen before include "Small plant, veronica" , "Small creeping herbaceous plant with blue or pink flowers" , "Flowering plant" , "bloomer?" , "Small blue flower of the genus veronica" .)