It’s reported when breaking (hot), going out prime time (4,5)
I believe the answer is:
'it's reported' is the definition.
(something reported on)
'breaking hot going out prime time' is the wordplay.
I cannot really see how this works, but
'hot' could be 'new' (synonyms) and 'new' is located in the answer.
'prime' could be 'seven' (I've seen this before) and 'seven' is found in the answer.
'time' could be 't' (abbreviation) and 't' is present in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
'when' is the link.