Paint crudely (4)
'paint crudely' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for daub that I've seen before include "Smear roughly or paint clumsily" , "Crude painting" , "Smear carelessly" , "coat casually" , "Amateurish painting" .)
(Other definitions for bedaub that I've seen before include "Crudely paint" , "Smear with something sticky" , "Splodge with paint" , "Smear (with a sticky substance)" .)