Space Invader

Across

• 1: Entertainer's job
• 4: Some of the first Okies
• 8: Spacy rock
• 10: Mathematician Germain
• 11: Unit nearly interchangeable with mm Hg
• 13: Exchanged rings
• 14: Dr. Evil's right-hand woman, familiarly
• 16: Console a.k.a. the Famicom
• 18: Like lions, but not lionesses
• 20: Former channel of NASCAR and WWF
• 21: Delta follower
• 23: Suffix for art or palm
• 24: Singer Sade
• 26: How fish is sometimes eaten
• 27: Anonymous court combatant
• 28: "How goes?"
• 31: Let hang
• 33: Point ____ return
• 35: The One
• 37: No longer able to play it straight?
• 38: "Wardrobe malfunction" watchdog grp.
• 39: Ottawan skaters, for short
• 41: Stevens or Kennedy
• 42: Diminutive ending
• 44: Soils
• 47: Spacy rocks
• 49: TV family of the '70s
• 50: Director Boll

Down

• 1: No-goodnik
• 2: YOU SAW NO FLYING SAUCER
• 3: Apprehend
• 4: What you'll learn if you RTFM
• 5: Aah's partner
• 6: Like William Howard Taft
• 7: ____-Cat
• 8: Roberts's husband
• 9: White-tailed eagle
• 10: This clue is an example of one.
• 12: Gets the furniture ready for the next move
• 13: Didn't meet the usual standard
• 15: Santa ___, CA
• 17: Molded
• 18: Surrealist Joan
• 19: Prefix for plastic or trophy
• 22: Due
• 25: German actor Kier
• 29: Deallocates a shell variable, in Unix
• 30: Number one
• 32: ____ Chris Steak House
• 34: Prefix meaning "eight"
• 36: NO, REALLY, YOU SAW NO FLYING SAUCER
• 40: Lyonnais river
• 43: Brave general associated with chicken
• 45: Free (of)
• 46: 5 pt. plays, from 1897-1912
• 48: Australia's largest bird