From Longman Dictionary of Contemporary Englishscribblerscrib‧bler /ˈskrɪbələ $ -ər/ noun [countable] informal ALa writer, especially an unimportant one
Examples from the Corpus
scribbler• That Getsl Slatkis is a scribbler who has climbed on to the revolutionary bandwagon.• But scribblers like me and Rob on the page before this?• Clothiers, fullers, scribblers and weavers abounded.• Political scribblers were usually better value than politicians, most of them being irreverent and much better informed.• One part of me was contemptuous of the scribblers continually rescuing the world with their paper prescriptions.• No wonder the scribblers on the hustings have so much stale garbage blowing around their brains.• At least one contemporary reviewer got the feeling that the various scribblers were being praised more for their passports than their prose.• That's the way with scribblers, they are for ever borrowing other people's quotations.