Reporters finally pitch for The Sun? (4)
I believe the answer is:
star
'the sun?' is the definition.
(sun is a kind of star)
'reporters finally pitch' is the wordplay.
'finally' says to take the final letters.
'pitch' becomes 'tar' ('tar' can be a synonym of 'pitch'**).
The final letter of 'reporters' is 's'.
's'+'tar'='STAR'
'for' acts as a link.
(Other definitions for star that I've seen before include "- - of Bethlehem" , "Top performer" , "huge body of gas?" , "Major" , "Top-of-the-bill artist" .)