Competition for Foyt, 8 letters
Flag-waver's event?, 8 letters
Grand Prix, for instance, 8 letters
Grand Prix, for one, 8 letters
Nationwide Series event, 8 letters
Venue for a smoking car, 8 letters
Richard Petty, for one, 9 letters
Activity with flags, 10 letters
Dale Junior's sport, 10 letters
Cassette deck feature, 11 letters
Cassette deck feature, and a hint to this puzzle's theme, 11 letters
Cassette-player feature, 11 letters
Tape deck convenience, 11 letters
A radiogram produced by radiation emitted by the specimen being photographed, 14 letters
(physiology) maintaining a generally constant physiological state in a cell or organism, 14 letters