Relevance of reporter's exposé ... (7)
I believe the answer is:
bearing
'relevance' is the definition.
(bearing is a kind of relevance)
'reporter's expose' is the wordplay.
'reporter's' indicates a 'sounds like' (homophone) clue (report can mean to speak something aloud).
'expose' becomes 'baring' (baring or exposing something).
'baring' is a homophone of 'BEARING'.
'of' acts as a link.
(Other definitions for bearing that I've seen before include "Relevance, way of moving" , "Posture" , "Attitude - pivot - reference" , "Deportment" , "Carriage; suffering" .)