Crossword Puzzle Detour-causing event

Clue: Detour-causing event

Formal events (CEREMONIES with 10 letters)
Annual Charles River event (REGATTA with 7 letters)
TX event held at the end of winter (SXSW with 4 letters)
New grad sees equestrian event (8) (EGYPTIAN with 8 letters)
Sequential events (SERIES with 6 letters)
Retail event (SALE with 4 letters)
Main event in "The Crucible" (TRIAL with 5 letters)
Festive event (GALA with 4 letters)
Event where everyone in New Orleans naps in sunbeams? (CATTUESDAY with 10 letters)
Christmas Eve events (WORSHIPSERVICES with 15 letters)