Reporter's function and job, one giving direction (8)
I believe the answer is:
signpost
'one giving direction' is the definition.
'signpost' can be an answer for 'direction' (thesaurus). I am not sure about the 'one giving' bit.
'reporter's function and job' is the wordplay.
'reporter's' indicates a 'sounds like' (homophone) clue (report can mean to speak something aloud).
'function' becomes 'sine' (mathematical function).
'and' means one lot of letters go next to another.
'job' becomes 'post' (post is a kind of job).
'sine' is a homophone of 'sign'.
'sign'+'post'='SIGNPOST'
Can you help me to learn more?
(Other definitions for signpost that I've seen before include "Postings (anag.)" , "Direction indicator" , "Route indicator" , "Guide, indicator" , "Indication of direction" .)