| TWEEPLE | A neologism referring to the collective users of a microblogging site formerly symbolised by a blue bird (7) |
| TWEEDLE | Word for microbloggers who use the social media website symbolised by a blue bird (7) |
| TWEETED | Used a microblogging service |
| SOUNDSGREATTOME | "I'm on board!," and a phonetic hint to the collective starts of 20-, 32- and 39-Across |
| PAYPAL | E-commerce site formerly owned by eBay |
| SEARSTOWER | Chicago skyline site, formerly |
| GRUS | Symbolised by a crane, one of the constellations named after a bird, along with Aquila the Eagle, Columba the Dove, Corvus the Crow, Cygnus the Swan and others (4) |
| CREAM | Devoured by a scone fancier, stolen by a blue tit, filling a "naughty but nice" bun or layered on a trifle's top, it is an unctuous churned dairy food synonymous with the best, choice, elite or finest |
| COINAGE | The act of striking metal money; the bits, pieces or specie made; or, the invention of a neologism (7) |
| MERC | A short or informal name of a car symbolised by a three-pointed star; or, a soldier of fortune (4) |
| OCCLUDED | On a weather map, the kind of front symbolised by a combination of spikes and semi-circles |
| INCHWORM | Sat upon by a blue caterpillar in Alice's Adventures in Wonderland, a fruiting body with pieces eaten by Alice in order to shrink or grow (8) |
| CHAT | Online exchange of messages in real time with other users of a computer network (4) |
| TRUST | National -; co-founded by Octavia Hill in 1895 and symbolised by a spray of oak leaves, a UK charity that preserves places of historic interest or natural beauty (5) |
| LACERTA | Constellation on the edge of the Milky Way symbolised by a lizard (7) |
| PEACE | Personified by goddess Eirene and symbolised by a white dove or olive branch, a state of calm or armistice (5) |
| TRITON | Merman-like sea god symbolised by a conch; the trumpet shell itself; a figurative sailor/ship; or, a newt (6) |
| DEMOCRAT | A member of the U.S. political party symbolised by a donkey (8) |
| UNION | A state of oneness, as symbolised by a flag's canton, wedlock or an association of students/workers (5) |
| FIRSTAID | Symbolised by a white cross on a green background, medical assistance taught by the British Red Cross or St John Ambulance (5,3) |
