Crossword Genius

Goes up 100 arms and legs! (6)

Ross

I believe the answer is:

climbs

'goes up' is the definition.
('climb' can be a synonym of 'go up')

'100 arms and legs' is the wordplay.
'100' becomes 'C' (Roman numeral).
'arms and legs' becomes 'limbs' (your limbs are your arms and legs).
'c'+'limbs'='CLIMBS'

(Other definitions for climbs that I've seen before include "Moves upward gradually" , "Goes up" , "Advances" , "Moves upward slowly" , "Scales" .)

I've seen this clue in the Sydney Morning Herald.
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