Stop press by last one home! (3,6)
I believe the answer is:
the latest
'stop press by' is the definition.
I can't tell whether this definition defines the answer.
'last one home' is the wordplay.
I cannot really see how this works, but
'last' could be 'latest' (synonyms) and 'latest' is located in the answer.
'one' could be 'the' (both can introduce a definite example of something) and 'the' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for the latest that I've seen before include "breaking news" , "Worst timekeeper, maybe" .)