Crossword puzzle clue "what a crossword clue typically starts with"

What a crossword clue typically starts with

Actress/singer Helen with the CD "Crossword" (the title track starts "I found my true love today doing the crossword on the back of the 6 train")

Like a crossword clue about crossword clues, say

Friday crossword, typically

What crossword constructors typically work on

One whose range typically starts at F below middle C

It starts in the upper-left corner of a crossword

"Word that can appear before the starts of A-, B- C-, D- and E-Across" crossword theme, e.g.