Grovel, fawn (6)
I believe the answer is:
kowtow
This clue is a double definition.
'grovel' is the first definition.
(I've seen this before)
'fawn' is the second definition.
(I know that fawn can be written as kowtow)
(Other definitions for kowtow that I've seen before include "Chinese submissive gesture" , "Kneel (to someone)" , "Grovel - fawn" , "Behave obsequiously" , "Lick someone's boots" .)