Have You Been Investigated Yet
ChatterBank2 mins ago
Sorry, folks - the usual hold up, I'll keep checking 😳
12a A variant of 'clandestine, hidden, secret, - a book jacket, canopy of trees, carpet of woodland flowers etc (5)
35d Word for a leaf in a book etc (4)
48d Tree whose fleetingly beautiful Sakura (blossom) is celebrated in Japan etc (6)
53d Unit of time whose precision relies on the rhythm of caesium atoms (4)
Are you sure about the letter count for 53d, Steff? Shouldn't it be 6?
"The second is defined by taking the fixed numerical value of the caesium frequency ∆ν, the unperturbed ground-state hyperfine transition frequency of the caesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s−1."