| WAVE | Signalling gesture (4) |
| ERGS | Register "G" signalling some work units (4) |
| PORN | Sleazy material signalling Putin's end? (4) |
| CODE | Morse ___, signalling system (4) |
| GORE | Blood signalling end of game? (4) |
| MATE | Team goes wild, signalling game over (4) |
| VERY | True, one has a flare for signalling (4) |
| FLAG | One of a pair of hand-held items used for signalling in a form of semaphore (4) |
| BELL | Signalling device often found on a traditional sit-up-and-beg bike; or, the end of a trumpet (4) |
| TIME | Concept measured in horology; or, a call or bell signalling the end of permitted drinking hours in a pub (4) |
| DRUM | A revolving cylinder in a washer; a barrel for oil; a house; a tympanum for signalling; or, by extension, in Australia, a piece of information (4) |
| ENDS | Letters from boyfriend signalling conclusion, many times over (4) |
| OVER | In signalling and radio, a procedure word meaning 'it is now your turn to speak' (4) |
| LAMP | Light fixture or signalling device |
| HORN | Signalling device |
| IRSE | Institute of Railway Signalling Engineers - familiarly (1, 1, 1, 1) |
| MORSECODE | Signalling language (5,4) |
| REAREND | Crash into back of convertible near to stop-light signalling "stop" (4-3) |
| DOGROSE | With pink flowers signalling an approaching summer, a wild climber found intertwined with brambles in hedgerows and woodland edges or with ripening fruit in the autumn (3,4) |
| ALDISLAMP | Device for signalling in Morse code (5,4) |
