Answer: CARELESSTALK
The answer CARELESSTALK has 4 possible clues. See the results below.
Possible Clues:
- Conference after 4 across could cost lives according to British wartime propaganda
- In 18 across, top eight lecture on what could cost lives according to British wartime propaganda
- Conversation after start of 18 across costs lives according to British wartime propaganda
- Gas responsible for the leak costing lives?