ITV air new details (6)
I believe the answer is:
trivia
'details' is the definition.
(I've seen this before)
'itv air new' is the wordplay.
'new' indicates anagramming the letters.
'itv'+'air'='itvair'
'itvair' anagrammed gives 'TRIVIA'.
(Other definitions for trivia that I've seen before include "Unimportant things, items of little value" , "minor points of interest?" , "Things of little importance" , "Matters very little" , "The details of little or no importance" .)