Fronts separate them


1 Answer 9 letters
Airmasses 9 letters
Similar Clues:
You might draw them when answering questions
Actor Jared who fronts the band 30 Seconds to Mars
Action needed to spot the four fliers in the theme answers
A WWI song urged us to keep them burning
Activity suggested by this puzzle's theme entries
Partially obscured (and a hint to this puzzle's theme)
Anathema, to Polonius
Adele won five of them in February
About 57 degrees, mathematically
Mathematician's ordinal
Lone Ranger's theme composer
Fabergé jeweled them
Miss Marple finds them
Bodybuilder's theme song?
Container holding slips of paper with tasks written on them
Asleep ... or a hint to this puzzle's theme
African American mathemetician who purportedly surveyed the District of Columbia
Alternative words used as alternatives for each other in this puzzle's theme answers
Paper deliverers have them: Abbr.
Contract extras, and read differently, a hint to this puzzle's theme
Behave!" ... and a hint to this puzzle's theme
According to the '60s sitcom's theme song: "It's primitive as can be ... here on ___": 2 wds.
Alternative theme song to "Cosmos"? (the Beastie Boys)
A ruler may have them, briefly
Amazon tablet (Yeah, I probably should have included this as part of the theme, but I couldn't come up with a suitable answer.Sue me.)
An oh, what ___ we'll hit!" (lyric from Bugs Bunny's theme song)
Pink Floyd got "Obscured by" them
You can't have big days without them
Moody's rates them
Creepy pencil-and-paper "game" popularized in 2015 via YouTube and Twitter (and basis of the theme answers)