Elizabeth went by horse to break down (5)

I believe the answer is:

erode

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'break down' is the definition.
(I've seen this in another clue)

'elizabeth went by horse' is the wordplay.
'elizabeth' becomes 'e' (this could be a standard abbreviation I've not previously seen).
'went by horse' becomes 'rode' (I've seen this in another clue).
'e'+'rode'='ERODE'

'to' is the link.

Can you help me to learn more?

(Other definitions for erode that I've seen before include "Abrade" , "go to pieces!" , "Wear away with weather" , "Eat away" , "Corrode" .)

I've seen this clue in The Mirror.

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