Write quickly (4,3)
'write quickly' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for jot that I've seen before include "Write a short note" , "Write hurriedly" , "Small piece - note" , "Set down briefly" , "Scrap" .)
(Other definitions for scribble that I've seen before include "Dash off" , "Write carelessly" , "Write hurriedly" , "Write quickly and/or badly" , "Scrawl" .)
'write quickly' is the definition.
(synonyms)
This is all the clue.
(Another definition for dash off that I've seen is " Rush away".)