Scribble (6)
I believe the answer is:
scrawl
'scribble' is the definition.
(I know that scribble can be written as scrawl)
This is the entire clue.
(Other definitions for scrawl that I've seen before include "Roughly put down" , "Untidy drawing" , "careless writing" , "Write carelessly or sloppily" , "Hasty writing" .)