Answer:

spoilers

Answer	Crossword Clue
SPOILERS	League leaders' foes
SPOILERS	Premature plot giveaways, e.g.
SPOILERS	Unwelcome giveaways

SPOILERS	Plunderers.
SPOILERS	Rex Beach's "The ..."
SPOILERS	Upset-minded teams
SPOILERS	Sports car features
SPOILERS	Subjects of some alerts
SPOILERS	Features of some film reviews
SPOILERS	Parts of reviews you might not want to read