| MOODMUSIC | Low density rock, possibly providing a background for hotel lobbies? (4,5) |
| ALARMCLOCK | Some people will lose sleep over this, with grandfather possibly providing a wake-up call for others (5,5) |
| IGNEOUS | Type of rock possibly no use to returning G.I. (7) |
| TINT | In printing, a panel of faint colour serving as a background for text etc. (4) |
| SET | Established a background for film actors (3) |
| AGROUND | On the rocks, possibly needing silver bullet (7) |
| GASGIANT | Term for a large planet of low density composed mostly of hydrogen and helium (3,5) |
| RAREFIED | Thin, having a low density as the air in high altitudes (8) |
| RARE | A steak might be of low density |
| PRESSRELEASE | Instruction for launch possibly providing form of publicity |
| LOGO | A lowercase "f" on a blue background, for Facebook |
| EUFLAG | It has a ring of 12 gold stars on a blue background, for short |
| RELIEF | From "raise up", a word for deliverance from burden, pain or stress; comfort thereafter; a sculpture protruding from a background; a rest or breather; or, aid to the poor (6) |
| SPARSITY | Low density small to average urban population, so it's said (8) |
| AEROGEL | Foam material of extremely low density |
| TITANIUM | Strong, low-density, highly corrosion-resistant, white metallic element (8) |
| NEIGHBOUR | Fellow human possibly providing part of watch? |
| MARTINGALE | Windswept market possibly providing bit of tack (10) |
| CABARET | Bear act possibly providing the floorshow (7) |
| MOTORVEHICLES | Cars etc possibly providing movie chortles (5,8) |
