Answer:

DEE

Answer	Crossword Clue
DEE	"Look at Me, I'm Sandra ..."
DEE	Actress Ruby
DEE	Actress Wallace-Stone

DEE	Cee follower
DEE	Door opener?
DEE	Pee .. River
DEE	Poor grade
DEE	Poor mark
DEE	River to the North Sea
DEE	Scottish river
DEE	Slumgullion, e.g.

DEE	Wallace of "E.T."
DEE	60 or so average
DEE	Chef Boy-ar-..
DEE	Gidget portrayer Sandra
DEE	Report-card ruiner
DEE	Ruby or Sandra
DEE	Actress Sandra
DEE	Sandra or Ruby

DEE	GPA spoiler
DEE	Snider of Twisted Sister
DEE	"Look at Me, I'm Sandra ...!" ("Grease" song)
DEE	Just-passing grade
DEE	River in Scotland
DEE	Jay preceder
DEE	Wallace of E.T.
DEE	Letter

DEE	Jolly Miller's river
DEE	Aberdeen river
DEE	Ruby in films
DEE	Third consonant
DEE	Irish Sea feeder
DEE	River through Wales
DEE	Billy .. Williams
DEE	Drum head?

DEE	One of the Tweedles
DEE	Low grade
DEE	"Look at Me, I'm Sandra ..." (song from "Grease")
DEE	Ruby of "American Gangster"
DEE	Hollywood ending?