13 letters Author of the verse that starts with the beginnings of 20-, 34- and 42-Across Answer: ALEXANDERPOPE
13 letters Repeatedly ... and a hint to the answers to this puzzle's starred clues Answer: TIMEAFTERTIME
13 letters Most crosstown thoroughfares in Manhattan ... with a hint to this puzzle's theme Answer: ONEWAYSTREETS
13 letters **One way to fall in love ... or a hint to the answers to the starred clues Answer: HEADOVERHEELS