Handyman exposes truth over corporation (8)
I believe the answer is:
factotum
'handyman' is the definition.
(I've seen this before)
'truth over corporation' is the wordplay.
'truth' becomes 'fact' (I've seen this before).
'over' becomes 'o' (cricket abbreviation).
'corporation' becomes 'tum' (I've seen this before).
'fact'+'o'+'tum'='FACTOTUM'
'exposes' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for factotum that I've seen before include "'Retainer, servant (8)'" , "Someone employed for a variety of jobs" , "Odd-job servant" , "One who does all kinds of work" , "One employed to do various jobs" .)