| DOMINOEFFECT | Part of the game leads to repercussions and what amounts to a series of chain reactions (6,6) |
| DNA | Series of chain letters? |
| KIDNAPPER | Rib and head taken from fish - the person who took them illegally wants what amounts to a ransom to give them back (9) |
| SERMON | Blows nose outside address, upset with what amounts to a preaching (6) |
| EFFECT | To made an impression on the radio leads to repercussions (6) |
| AFTERMATH | Moving that frame leads to repercussions (9) |
| FREERADICAL | Liberate extremist that is capable of chain reactions ... (4,7) |
| KEANU | Reeves of "Chain Reaction" |
| KNOCKONEFFECT | Criticise about outcome of chain reaction (5-2,6) |
| BACKWASH | Defender was hard, leading to repercussion |
| BITESTHEDUST | Comes to nothing for most of them after getting mosquito stings on what amounts to dead skin (5,3,4) |
| HEADSORTAILS | Guessing game leads to liars being devious (5,2,5) |
| ARCADE | This word refers to a gallery or building that is arched or to a series of arches. Strictly speaking, it came to English from Italian by way of French; the Italian, in turn, came from the Latin arcus. |
| APOLLO | Name given to a series of manned US spacecraft designed to explore the moon and surrounding space |
| EALING | Which London suburb gave its name to a series of comedy films made there in the 40s and 50s? (6) |
| ROAST | Comedy event in which a guest of honour is subjected to a series of jokes at their expense (5) |
| ADRIAN | Forename of the angst-ridden diarist central to a series of books penned by Sue Townsend (6) |
| RHAETIC | In geology, relating to a series of rocks in the late Jurassic period (7) |
| DOWNPAYMENT | The deposit that ties you in to a series of reimbursements (4,7) |
| REIGNOFTERROR | Name given to a series of killings during the French Revolution (5,2,6) |
