Material in headline news (5)
I believe the answer is:
linen
'material' is the definition.
(I know that linen is a type of material)
'in headline news' is the wordplay.
'in' indicates a hidden word.
'LINEN' is hidden within 'headline news'.
(Other definitions for linen that I've seen before include "bedsheets?" , "underwear" , "Fabric made from flax" , "Sheets, cloths, napkins etc" , "Cloth woven flax fibres" .)