I didn't know:
Carrots in TV dinners are DICED ICHAT is Mac messaging
Steve EARLE is a singer AIMEE Mann is a guitarist
DEALAMEAL is a diet RUBADUB means ratatat
CHOCKABLOCK means tightly packed, and I sailed my own 30-footer for years.
MADONNA sang "Express Yourself." When I read the clue I thought of a best forgotten '50's rock song with the same title, though it may have been "Spress Yoursef" since that's how the singer expressed himself.
Amazingly, I filled it out cleanly in ink, proving that in crosswords, it's not what you know but where you know.