Answer to Puzzle Contest:

clockwise. 160 square rods is an acre, and wise is a synonym for astute, so "160 astute square rods" is a wiseacre. Yes, this is really a word! - http://dictionary.reference.com/search?q=wiseacre - The first half of wiseacre is the word wise, which is the second part of a "word that begins with a timepiece." This word is clockwise.

Winner: Connie Velte/OKC