Possible Clues:

• Police or private investigator
• Sleuth
• Private or police investigator
• Investigator
• Holmes, perhaps imperfect, having time for female
• Investigating policeman
• Eye could be faulty, losing a bit of focus for a little time
• What a spade is called by Hammett
• Busy joint entertaining unworldly visitor taking in a lot of college
• Private investigator