Possible Clues:

• *Arrives back at square one
• Returns to the beginning, as suggested by the phonetic formula found at the starts of 17-, 37-, and 42-Across
• Ends up where one started in society after approach from 10 across and 26 across
• Arrives at one’s starting point again, and the first clue to the puzzle theme
• Ends up where one started at school after approach from 24 across and 8 across
• Chases one's tail