| BEANIEBABY | One of a set of faddish toys that at its peak made up 10% of all eBay sales |
| BRUNEI | Islamic sultanate that, at its peak in the 16th century, is thought to have had control over most regions of Borneo (6) |
| PINA | ___ colada (drink that, at its best, is served in a hollowed-out pineapple) |
| FURBY | Faddish toy of the late '90s |
| ASIS | eBay sale condition, usually |
| TACHI | Faddish toy from Japan — not magot but samurai sword |
| RUSHHOUR | A time at the beginning or end of a working day when movement of traffic/people is at its peak (4,4) |
| RIPE | Word, from "harvest", for a fruit at its peak or a cheese at its most mature, thus ready to be reaped (4) |
| FRIENDSTER | Bygone social network that had over a hundred million users at its peak |
| IKEACATALOG | Publication that ran from 1951 to 2021 and printed more than two hundred million copies per year at its peak |
| WANG | Now defunct computer company which, at its peak in the 1980s, had turnover of $US3 billion (4) |
| SWANSEA | Nicknamed "Copperopolis", which city in Wales smelted about 90% of the world's copper at its peak in the 19th century? (7) |
| HAVEAGO | Radio game show presented by Wilfred Pickles and his wife Mabel said to attract an audience of 20 million at its peak in the 1950s |
| MERETZ | Left-wing party that won 12 Knesset seats at its peak (6) |
| APEX | At its peak it swings the axe round top of poplar (4) |
| LYON | A Roman military colony called Lugdunum was founded on the site of this French city in 43 BCE, and it subsequently became the capital of the Gauls. This place reached its peak of classical development |
| YAKUZA | Member of a Japenese gangster organisation that reached its peak in the 1960s (6) |
| MERCIA | Anglo-Saxon kingdom of central and southern England that reached its peak during the reign of King Offa (757-96) (6) |
| DAYANDNIGHT | Like the Blitz at its peak, exemplifying 10 (3,3,5) |
| FULLBLAST | How the dynamiting is going when at its peak? |
