Related Clues:

• Rocket's realm
• Parker's quest
• Astronaut's milieu
• Kirk's "final frontier"
• __ bar
• Sci-fi frontier
• Personal need, for many
• '___ Oddity' (1969 David Bowie single)
• Blank
• It's just below a B
• Opportunity for privacy
• Zone (out)
• Room for capes
• A particular area for paces
• Empty area, may be outer