Latest information about absurdly hep relations (7)
I believe the answer is:
nephews
'relations' is the definition.
(nephew is a kind of relation)
'latest information about absurdly hep' is the wordplay.
'latest information' becomes 'news' (I've seen this before).
'about' is an insertion indicator.
'absurdly' indicates an anagram (I've seen this in other clues).
'hep' with letters rearranged gives 'phe'.
'news' going around 'phe' is 'NEPHEWS'.
(Other definitions for nephews that I've seen before include "Kinsmen" , "Male relatives" , "Male kin" .)