Crossword puzzle clue "wrote doggerel"

Wrote doggerel.

What doggerel usually lacks

Writes doggerel.

Like doggerel, often

Doggerel for one

Graphic novelist Bechdel who wrote "Fun Home" and came up with the Bechdel test and Elvis Costello wrote a song about her!

Best-selling author who wrote "I did not write it. God wrote it. I merely did his dictation"

Writer who wrote "A bear, however hard he tries, / Grows tubby without exercise"