Scoot, scram (9)
I believe the answer is:
skedaddle
I believe this clue is a double definition.
'scoot' is the first definition.
(I've seen this in another clue)
'scram' is the second definition.
(I've seen this before)
(Other definitions for skedaddle that I've seen before include "split" , "Hightail it" , "Depart hurriedly" , "Run off hurriedly (colloq.)" , "In slang, go away quickly, scoot" .)