Possible Clues:

• 9-to-5 work period
• Sun maybe one newspaper seen by quiet workers
• Work period ending before sundown
• Tad fishy, criminal never works nights
• Sort of shy individual overwhelmed by crazy period of work
• Hours of work experienced crossing the date line?
• One time at the weekend perhaps, transport one group of workers
• What a nine-to-fiver works ... or, literally, what each set of circled letters represents
• What artist might wear working during the morning?
• One set of workers responsible for article, kind of fishy, in Daily Telegraph?