Where everyone was rightly under suspicion, hellish working for a Chinese newspaper? (6,2,3,6,7)
I believe the answer is:
murder on the orient express
'where everyone' is the definition.
The definition suggests a singular noun which matches the answer.
'was rightly under suspicion hellish working for a chinese newspaper?' is the wordplay.
I cannot really see how this works, but
'was' could be 'ex' (I've seen this in other clues) and 'ex' is located in the answer.
'working' could be 'on' (e.g. a machine is working or on) and 'on' is located in the answer.
'newspaper?' could be 'press' (newspaper is a kind of press) and 'press' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?