One of the embassy staff who makes news? (5,7)

'embassy staff who makes news?' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'one of the' is the wordplay.
I cannot really understand how this works, but
'one' could be 'a' (a thing is one thing) and 'a' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?