Hi Rossim, I was the same, this grid and the 6,7 in 1a is a dead give away of the alliterative intent. I made a list of the previous 6,7 1a answers over the last year or so hoping it might lead to some secret code, but I guess not…
R rabble rousing, B bunsen burners, C cruise control, M murder mystery, S secret service, G get the giggles, C county council, P pyjama parties, L liquid lunches