Obsequious (7)
'obsequious' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for slavish that I've seen before include "Menial" , "Blindly imitative" , "fawning" , "Humble" , "wasteful" .)
'obsequious' is the definition.
(I know that obsequious can be written as fawning)
This is all the clue.