| SCIENTIST | Despatched confidential informant to infiltrate a society holding Tesla or someone like him |
| BIOTIC | Confidential informant to go in the same place and return as living organism (6) |
| COSANOSTRA | Mafia stalwarts, on a society holding them back (4,6) |
| ATTEMPT | Endeavour made by casual worker to infiltrate a motorcycling event (7) |
| ASIANS | Welsh woman infiltrates a society for non-Europeans (6) |
| MOTOR | Word originally for a person who imparted motion, later a device such as the AC induction type developed by Nikola Tesla; or, informally, a car (5) |
| CLASSIC | Traditional girl involved with confidential informant, leading to start of criminality (7) |
| MOTORINGOFFENCE | Convertible roof coming free on Tesla, or missing - this leads to a penalty (8,7) |
| MOLES | Spots spies who successfully infiltrate a rival organisation (5) |
| PERMEATE | Infiltrate a couple's enthralling exchange at last (8) |
| BODYSTOCKING | Society holding onto goods keeps figure under cover (4,8) |
| DEEPTHROAT | Thread poet developed for very confidential informant (4,6) |
| INTRUDES | Gatecrashes popular, authentic society holding first of dances (8) |
| BLUEGRASS | Down to informant to provide some music (9) |
| GRASSLAND | Informant to come down to prairie (9) |
| GRASSSKIRT | Informant to go round in tropical attire (5,5) |
| IMITATE | A friend took a little time to be like him (7) |
| CASTLES | Groups in society holding large, defendable properties |
| CI | Confidential informant, abbr. (2) |
| DISCIPLE | Follower lisped badly around confidential informant (8) |
