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Go up to intercept undesirables over there (4)

Ross

I believe the answer is:

rise

I'm a little stuck... Click here to teach me more about this clue!

'go up' is the definition.
(I know that rise is a kind of go up)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for rise that I've seen before include "Hill" , "Pay increase" , "more money" , "Growth" , "Ascend" .)

I've seen this clue in The Irish Times.
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