The most common and most likely answer to this crossword clue is the 9 letter word NEWSHOUND
I've seen this crossword clue in Financial Times
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More clues leading to the result NEWSHOUND
- Reporter, having rattled on, we’d shun
- Reporter hot to probe something never heard before?
- US reporter from south eaten by puppy?
- Hospital featuring in latest report for hard-line journalist
- Aggressive journalist’s latest report about hypocritical leader
- Reporter, having rattled on, we'd shun
- Second of threads in novel valid, one sniffing out a story?
Buddy explains!

The straight part
We know that "US reporter" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case us reporter = newshound.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does NEWSHOUND mean?
NEWSHOUND noun- An investigative reporter.