Man's run over - fine (4)

I believe the answer is:

rook

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'man's' is the definition.
(rook is a kind of man)

'run over fine' is the wordplay.
'run' becomes 'ro' (I can't explain this - if you can you should give a lot more credence to this answer).
'over' says to put letters next to each other.
'fine' becomes 'ok' ('OK' can be a synonym of 'fine').
'ro'+'ok'='ROOK'

Can you help me to learn more?

(Other definitions for rook that I've seen before include "Fleece - bird" , "journalist Jean" , "Species of crow" , "Steal - castle" , "Use deceit to get money" .)

I've seen this clue in The Independent.

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