Crossword Genius

Climb on (5)

Ross

I believe the answer is:

mount

'climb on' is the definition.
(synonyms)

This is all the clue.

(Other definitions for mount that I've seen before include "Steed" , "Get upon" , "Climb - eg Everest" , "Take < a back" , "St. Helens, for example" .)

I've seen this clue in the Universal and the Penny Press.
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