High road is finished and old man's beginning from scratch (8)
I believe the answer is:
overpass
'high road' is the definition.
(I've seen this before)
'finished and old man's beginning from scratch' is the wordplay.
'finished' becomes 'over' (over can mean finished or ended).
'and' is a charade indicator (letters next to each other).
'old man's' becomes 'pa's' (both can mean someone's father).
'beginning from scratch' becomes 's' (I can't explain this - if you can you should believe this answer much more).
'over'+'pas'+'s'='OVERPASS'
'is' is the link.
Can you help me to learn more?
(Other definitions for overpass that I've seen before include "Flyover" , "High-level road" , "bridge" , "high road" .)