| Invest, so to speak | 19 |
| Invested | 8 |
| Invested (with) | 15 |
| Invested with responsibility | 28 |
| Investigate | 11 |
| Investigate (with ''into'') | 43 |
| Investigate (with "into") | 35 |
| Investigate anew, as a case | 27 |
| Investigate deeply (with ''into'') | 50 |
| Investigate from time to time | 29 |
| Investigate intensely | 21 |
| Investigate surreptitiously | 27 |
| Investigate thoroughly | 22 |
| Investigate, as a dog does | 26 |
| Investigate, as a toy mouse | 27 |
| Investigate, as before a heist | 30 |
| Investigate, canine-style | 25 |
| Investigate, in a way | 21 |
| Investigate, kitten-style | 25 |
| Investigate, tabby-style | 24 |
| Investigate, with "into" | 34 |
| Investigated | 12 |
| Investigated in a way | 21 |
| Investigated with "about" | 35 |
| Investigated, with ''into'' | 43 |
| Investigated, with "into" | 35 |
| Investigates | 12 |
| Investigates anew | 17 |
| Investigates, with "into" | 35 |
| Investigating maraschinos? | 26 |
| Investigation | 13 |
| Investigation aid | 17 |
| Investigation aids | 18 |
| Investigation culmination | 25 |
| Investigation factors | 21 |
| Investigation into a social networking site? | 44 |
| Investigation into the death of a famous writer? | 48 |
| Investigation of one person after another? | 42 |
| Investigation revelation | 24 |
| Investigation subject | 21 |
| Investigation with much digging | 31 |
| Investigation, for short | 24 |
| Investigations | 14 |
| Investigative division (and puzzle theme hint) | 46 |
| Investigative journalism piece, perhaps | 39 |
| Investigative journalist's piece | 36 |
| Investigative journalist's report | 37 |
| Investigative object | 20 |
| Investigative org. | 18 |
| Investigative procedures | 24 |
| Investigative report | 20 |
| Investigative reporter's asset | 34 |
| Investigative reporter's specialty | 38 |
| Investigative reporter, often | 29 |
| Investigative tool | 18 |
| Investigative tool? | 19 |
| Investigative work | 18 |
| Investigator | 12 |
| Investigator for short | 23 |
| Investigator from the P.D. | 26 |
| Investigator in the USS Cole attack | 35 |
| Investigator of family problems, say | 36 |
| Investigator of many accidents, for short | 41 |
| Investigator of unnatural deaths | 32 |
| Investigator who finds someone's birth mother, say | 54 |
| Investigator's employer: Abbr. | 34 |
| Investigator's question | 27 |
| Investigator's sources | 26 |
| Investigator, at times | 22 |
| Investigator, briefly | 21 |
| Investigator, informally | 24 |
| Investigator, of sorts | 22 |
| Investigator, slangily | 22 |
| Investigator: Abbr. | 19 |
| Investigators | 13 |
| Investigators of funny money | 28 |
| Investigators sometimes follow them | 35 |
| Investigators, for short | 24 |
| Investigators: Abbr. | 20 |
| Investigatory aid | 17 |
| Investing advice: 2 wds. | 24 |
| Investing all one's money in a penny stock, say | 51 |
| Investing considerations | 24 |
| Investing defensively | 21 |
| Investing formula used by a portfolio manager | 45 |
| Investing in a growth company | 29 |
| Investing largely in money markets, say | 39 |
| Investing opportunity (abbr.) | 29 |
| Investing opportunity, for short | 32 |
| Investing option | 16 |
| Investing options | 17 |
| Investing plan, for short | 25 |
| Investing return | 16 |
| Investing unit | 14 |
| Investment | 10 |
| Investment activity, so to speak | 32 |
| Investment advice | 17 |
| Investment advice writer Andrew | 31 |
| Investment adviser's determination | 38 |
| Investment adviser's suggestion, for short | 46 |