Tabloid relative mentioned (3)
I believe the answer is:
sun
'tabloid' is the definition.
(The Sun, UK newspaper)
'relative mentioned' is the wordplay.
'relative' becomes 'son' (son is a type of relative').
'mentioned' shows a homophone (sound like).
'son' is a homophone of 'SUN'.
(Other definitions for sun that I've seen before include "Rag" , "Source of daylight" , "Our central star" , "Star round which we orbit" , "Warmer" .)