Catch me up on motorway cutting through county ridge (10)
I believe the answer is:
embankment
'catch' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'me up on motorway cutting through county ridge' is the wordplay.
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'on' is a charade indicator (letters next to each other).
'motorway' becomes 'M' (as in motorway names - Me, M4 etc).
'cutting through county' becomes 'ent' (I can't explain this - if you can you should believe this answer much more).
'ridge' becomes 'bank' (bank is a kind of ridge).
'me' in reverse letter order is 'em'.
'm'+'ent'='ment'
'ment' after 'bank' is 'bankment'.
'em'+'bankment'='EMBANKMENT'
Can you help me to learn more?
(Other definitions for embankment that I've seen before include "Flood wall" , "Wall built to prevent flooding" , "Riverside wall" , "rampart" , "protection against rising liquidity" .)