Related Clues:

• Beatnik's 'all right'
• Unthreatened
• Beatnik's expletive
• 56, say
•     Call with outstretched arms
• Bread box?
• Not nervous
• Home free
• Cracker's prize
• Like the proverbial cucumber
• Umpire's call, sometimes
• Not in harm's way
• Socially adept, in slang
• 'Groovy'
• Wall unit, perhaps