Related Clues:

• The balance is part of nature study
• Unwind from work
• Brief break
• Catch one's breath and then some
• Become sluggish
• Last ones to deal with
• You might take one lying down
• Doctor's suggestion, at times
• Remainder; be inactive
• One thing to get while on vacation
• Springsteen "Tougher Than the ___"
• Be at leisure
• Sit out a game
• Stop on street
• R&R part