| SPIDER | Briefly an undercover police officer operating in Weatherfield (6) |
| NUGENT | Briefly an undercover police officer operating in Weatherfield (6) |
| COCOON | Commanding officers operating silky case |
| SOPHIE | And 19 Across French actress who in the 2005 film Anthony Zimmer stars as an undercover police agent who meets the title character on a TGV train (6,7) |
| MARCEAU | French actress who in the 2005 film Anthony Zimmer stars as an undercover police agent who meets the title character on a TGV train (6,7) |
| BISHOP | Emily ___, absent aunt of undercover police officer Geoffrey 'Spider' Nugent in Coronation Street (6) |
| NICOLE | ___ Kidman stars as an undercover LAPD officer in the crime drama Destroyer (6) |
| INMATE | Sharon Watts was briefly an _ of a prison near Walford (6) |
| FLETCH | Chevy Chase stars as an undercover reporter in the title role of this 80s comedy |
| ENTRAP | Set up, as an undercover cop |
| DETECTIVE | Undercover police officer (5,7,9) |
| PLAINCLOTHES | Undercover police officer (5,7,9) |
| BANDIT | A robber in a gang typically operating in an isolated area (6) |
| DECOY | Undercover police officer, perhaps |
| MAOISM | Marxist activists operating in Sinic manner first of all (6) |
| ARAGON | A newspaper operating in Spain (6) |
| OREGON | Common soldiers, for example, operating in state (6) |
| AERIAL | Existing, happening or operating in the air (6) |
| DONATE | Give up operating in time (6) |
| MASONS | Stone workers operating in a crowd (6) |
